Resources
Testimonials
Plans
Sign in
Sign up
Resources
Testimonials
Plans
Home
Math Problems
Grade 7
Evaluate two-variable equations: word problems
The plot in the
h
d
h d
h
d
-plane shows the diameter
d
d
d
, in meters, of a giant sequoia tree trunk at a height of
h
h
h
meters. Which of the following equations best models the relationship between
d
d
d
and
h
h
h
?
\newline
Choose
1
1
1
answer:
\newline
(A)
d
=
−
0.11
h
+
8
d=-0.11 h+8
d
=
−
0.11
h
+
8
\newline
(B)
d
=
−
8
h
+
0.11
d=-8 h+0.11
d
=
−
8
h
+
0.11
\newline
(c)
h
=
−
0.11
d
+
8
h=-0.11 d+8
h
=
−
0.11
d
+
8
\newline
()
h
=
−
8
d
+
0.11
h=-8 d+0.11
h
=
−
8
d
+
0.11
Get tutor help
The plot in the
h
d
h d
h
d
-plane shows the diameter
d
d
d
, in meters, of a giant sequoia tree trunk at a height of
h
h
h
meters. Which of the following equations best models the relationship between
d
d
d
and
h
h
h
?
\newline
Choose
1
1
1
answer:
\newline
(A)
d
=
−
0.11
h
+
8
d=-0.11 h+8
d
=
−
0.11
h
+
8
\newline
(B)
d
=
−
8
h
+
0.11
d=-8 h+0.11
d
=
−
8
h
+
0.11
\newline
(c)
h
=
−
0.11
d
+
8
h=-0.11 d+8
h
=
−
0.11
d
+
8
\newline
(D)
h
=
−
8
d
+
0.11
h=-8 d+0.11
h
=
−
8
d
+
0.11
\newline
Show calculator
Get tutor help
The expression
62.4
d
−
210
62.4 d-210
62.4
d
−
210
gives the number of Indian rupees yo receive when you exchange
$
d
\$ d
$
d
at the local currency exchange.
\newline
How many Indian rupees do you receive when you exchange
$
13
\$ 13
$13
?
\newline
□
\square
□
Indian Rupees
Get tutor help
Khan Academy
\newline
Al for Teachers
\newline
FREE
\newline
Donate
\newline
Unit test
\newline
Google Classroom
\newline
Afi Microsoft Teams
\newline
Jamie is going to run for
1
2
\frac{1}{2}
2
1
of an hour at a constant rate, and they want to plan what that rate will be.
\newline
1
1
1
. Write an equation that represents the distance Jamie will run in kilometers
(
d
)
(d)
(
d
)
at a rate of
r
r
r
kilometers per hour.
\newline
□
\square
□
\newline
2
2
2
. How far will Jamie run if they choose a rate of
8
8
8
kilometers per hour?
\newline
kilometers
Get tutor help
Charlotte owns two entertainment websites. Here are some details about those websites for one entire month: Website A Website B Number of writers Number of posts posted Average number of words of post Average likes per post Average comments per post Number of new subscribers Revenue Expenses Profit
(Revenue - Expenses)
\text{(Revenue - Expenses)}
(Revenue - Expenses)
Charlotte wants to know which website gains more new subscribers per amount of content.
1
1
1
) Charlotte thought of two different ways to define this quantity. Identify these two definitions among the following options.
Get tutor help
Bally tracked the number of living organisms she found at different depths in a pond near her home, as shown in the histogram. What is the range of depths at which Bally found living organisms?
Get tutor help
Mrs. Tyler is researching what it would cost to order flower arrangements for a fancy party. She wants one large centerpiece for the head table, and smaller arrangements for the smaller tables. Dayton Florist charges
$
12
\$12
$12
for each smaller arrangement, plus
$
40
\$40
$40
for the large centerpiece. Grace's Flowers, in contrast, charges
$
50
\$50
$50
for the large centerpiece and
$
10
\$10
$10
per arrangement for the rest. If Mrs. Tyler orders a certain number of small arrangements, the cost will be the same at either flower shop. What would the total cost be?
\newline
Write a system of equations, graph them, and type the solution.
\newline
____ dollars
\newline
Get tutor help
The volleyball team and the wrestling team at Stafford High School are having a joint car wash today, and they are splitting the revenues. The volleyball team gets
$
2
\$2
$2
per car. In addition, they have already brought in
$
30
\$30
$30
from past fundraisers. The wrestling team has raised
$
35
\$35
$35
in the past, and they are making
$
1
\$1
$1
per car today. After washing a certain number of cars together, each team will have raised the same amount in total. What will that total be?
\newline
Write a system of equations, graph them, and type the solution.
\newline
____ dollars
Get tutor help
Martin works in the shipping department of a toy factory that makes radio-controlled helicopters. Small helicopters weigh
2
2
2
pounds each, and are shipped in a container that weighs
20
20
20
pounds. Large ones, on the other hand, weigh
4
4
4
pounds apiece, and are shipped in a container that weighs
10
10
10
pounds. If these boxes can hold a certain number of helicopters each, all of the packed containers will have the same shipping weight. What would the total weight be?
\newline
Write a system of equations, graph them, and type the solution.
\newline
___ pounds
\newline
Get tutor help
22
:
54
22: 54
22
:
54
\newline
205
□
205 \square
205
□
\newline
Hide
\newline
Calculator
\newline
Reference
\newline
More
\newline
12
12
12
□
\square
□
Mark for Review
\newline
A store sells two different-sized containers of blueberries. The store's sales of these blueberries totaled
896
896
896
.
86
86
86
dollars last month. The equation
4.51
x
+
6.07
y
=
896.86
4.51 x+6.07 y=896.86
4.51
x
+
6.07
y
=
896.86
represents this situation, where
x
x
x
is the number of smaller containers sold and
y
y
y
is the number of larger containers sold. According to the equation, what is the price, in dollars, of each smaller cogntainer?
\newline
□
\square
□
\newline
Answer Preview:
Get tutor help
A farmer's rectangular plot with a length of
L
L
L
meters and a width of
w
w
w
meters is shown in the figure. The perimeter, or distance around the plot, is
700
700
700
meters. Which of the following equations shows the perimeter of the plot in terms of length and width?
Get tutor help
A farmer's rectangular plot with a length of
l
l
l
meters and a width of
w
w
w
meters is shown in the figure. The perimeter, or distance around the plot, is
P
P
P
meters. Which of the following equations shows the perimeter of the plot in terms of length and width?
Get tutor help
Sarah has whole milk, which contains
3.25
%
3.25\%
3.25%
butterfat by volume, and one type of low-fat milk, which contains
1
%
1\%
1%
butterfat by volume. Which of the following systems could be used to determine the amount of whole milk,
\newline
w
w
w
, in ounces, and the amount of low-fat milk,
l
l
l
, in ounces, that Sarah should mix to obtain
32
32
32
ounces of a low-fat milk with
2
%
2\%
2%
butterfat by volume?
\newline
Choose
1
1
1
answer:
\newline
(A)
0.01
l
+
0.0325
w
=
32
0.01 l+0.0325 w=32
0.01
l
+
0.0325
w
=
32
\newline
\space
\space
\space
\space
\space
\space
\space
l
+
w
=
0.02
l+w=0.02
l
+
w
=
0.02
\newline
(B)
0.01
l
+
0.0325
w
=
32
0.01 l+0.0325 w=32
0.01
l
+
0.0325
w
=
32
\newline
\space
\space
\space
\space
\space
\space
\space
l
+
w
=
0.64
l+w=0.64
l
+
w
=
0.64
\newline
(C)
0.01
l
+
0.0325
w
=
0.2
0.01 l+0.0325 w=0.2
0.01
l
+
0.0325
w
=
0.2
\newline
\space
\space
\space
\space
\space
\space
\space
l
+
w
=
32
l+w=32
l
+
w
=
32
\newline
(D)
0.01
l
+
0.0325
w
=
0.64
0.01 l+0.0325 w=0.64
0.01
l
+
0.0325
w
=
0.64
\newline
\space
\space
\space
\space
\space
\space
\space
l
+
w
=
32
l+w=32
l
+
w
=
32
\newline
Get tutor help
An outdoor pool can be filled to
1
2
\frac{1}{2}
2
1
of its capacity in
1
1
1
hour, and
1
3
\frac{1}{3}
3
1
of its capacity in
1
1
1
hour by a second hose made by a different manufacturer. Both hoses have a constant rate of flow. Which of the following inequalities describes the number of hours,
h
h
h
, it takes to fill the pool to over
3
4
\frac{3}{4}
4
3
capacity with both hoses working at the same time?
Get tutor help
The image is of a cone sitting atop a cylinder. The cone's circular base is equal to the cylinder's circular top. The height of the cone is
2
2
2
and the height of the cylinder is
3
3
3
. The radius of the cylinder's base is
4
4
4
. The image is of a cone sitting atop a cylinder. The cone's circular base is equal to the cylinder's circular top. The height of the cone is
2
2
2
and the height of the cylinder is
3
3
3
. The radius of the cylinder's base is
4
4
4
. The solid shown has a volume of
_
\_
_
cubic units, where
_
\_
_
is a constant. What is the value of
_
\_
_
?
Get tutor help
A human child grows rapidly in the first
12
12
12
months after birth. The given function models
h
(
t
)
h(t)
h
(
t
)
, the child's height in centimeters,
t
t
t
months after birth for
0
≤
t
≤
12
0 \leq t \leq 12
0
≤
t
≤
12
. Between
0
0
0
to
6
6
6
months after birth, the child grows at an average rate of
2
2
2
centimeter per month. Approximately how many more centimeters does the child grow in their first
6
6
6
months after birth compared to their second
6
6
6
months (
6
6
6
to
12
12
12
months) after birth?
Get tutor help
A jar of jelly bean candies weighs
_
\_
_
ounces. A container of caramel candies weighs
_
\_
_
ounces. Lúcia buys
_
\_
_
pounds worth of jelly bean candy jars and caramel candy containers for her big party. Given that there are
_
\_
_
ounces in a pound, which of the following equations correctly relates the number of jars of jelly bean candies,
_
\_
_
, and the number of containers of caramel candies,
_
\_
_
, that Lúcia bought?
Get tutor help
Increases in elevation are recorded with positive numbers. Decreases in elevation are recorded with negative numbers.
\newline
A group of hikers is hiking down a mountain. After
4
4
4
hours they descended
600
600
600
meters. They descended the mountain at the same rate each hour.
\newline
What was the hiking group's change in elevation each hour?
\newline
□
\square
□
meters
Get tutor help
This equation shows how the length of Darnell's essay depends on the number of hours he spends writing this week.
\newline
p
=
h
p = h
p
=
h
\newline
The variable
h
h
h
represents the number of hours he spends writing this week, and the variable
p
p
p
represents the total number of pages that have been written. After spending
4
4
4
hours writing this week, how many pages will Darnell have written in total?
\newline
_____ pages
Get tutor help
This equation shows how the amount Billy earns from dog walking depends on the number of hours he works.
\newline
d
=
15
h
d = 15h
d
=
15
h
\newline
The variable
h
h
h
represents the number of hours spent walking dogs, and the variable
d
d
d
represents the amount of money earned. After a total of
1
1
1
hour of walking dogs, how much money will Billy have earned?
\newline
$
\$
$
_
_
_
_
\_\_\_\_
____
Get tutor help
This equation shows how the time required to screen-print a batch of shirts is related to the number of shirts in the batch.
\newline
t
=
3
s
t = 3s
t
=
3
s
\newline
The variable
s
s
s
represents the number of shirts in the batch, and the variable
t
t
t
represents the time required to screen-print the shirts. How long does it take to screen-print a batch of
5
5
5
shirts?
\newline
_____ minutes
Get tutor help
This equation shows how the distance Janice has cycled depends on the number of trips she has taken to work.
\newline
d
=
t
+
14
d = t + 14
d
=
t
+
14
\newline
The variable
t
t
t
represents the number of trips she has made, and the variable
d
d
d
represents the total distance cycled in kilometers. After
5
5
5
trips to work, how many kilometers will Janice have cycled in total?
\newline
_____ kilometers
Get tutor help
This equation shows how the size of Beth's sticker collection is related to the number of sticker packs she buys.
\newline
s
=
20
p
s = 20p
s
=
20
p
\newline
The variable
p
p
p
represents the number of sticker packs she buys, and the variable
s
s
s
represents the total number of stickers she has. After buying
1
1
1
sticker pack, how many stickers will Beth have in total?
\newline
_____ stickers
Get tutor help
This equation shows how the number of flowers Malik can have in his garden is related to the number of seed packets he purchases.
\newline
f
=
s
+
7
f = s + 7
f
=
s
+
7
\newline
The variable
s
s
s
represents the number of seed packets he purchases, and the variable
f
f
f
represents the total number of flowers in the garden. With
10
10
10
seed packets, how many total flowers can Malik have in his garden?
\newline
_____ flowers
Get tutor help
This equation shows how the distance Pablo has cycled depends on the number of trips he has taken to work.
\newline
d
=
t
+
9
d = t + 9
d
=
t
+
9
\newline
The variable
t
t
t
represents the number of trips he has made, and the variable
d
d
d
represents the total distance cycled in kilometers. After
6
6
6
trips to work, how many kilometers will Pablo have cycled in total?
\newline
_____ kilometers
Get tutor help
This equation shows how the size of Steve's sticker collection is related to the number of sticker packs he buys.
\newline
s
=
20
p
s = 20p
s
=
20
p
\newline
The variable
p
p
p
represents the number of sticker packs he buys, and the variable
s
s
s
represents the total number of stickers he has. After buying
1
1
1
sticker pack, how many stickers will Steve have in total?
\newline
_____ stickers
Get tutor help
Pick the story that can be modeled by the equation
x
+
2
=
8
x + 2 = 8
x
+
2
=
8
.
\newline
Choices:
\newline
(A)At Hayland Farms, Leo picked a total of
8
8
8
small pumpkins. He picked
x
x
x
orange pumpkins and
2
2
2
white pumpkins.
\newline
(B)At Hayland Farms, Leo picked
2
2
2
white pumpkins. Each pumpkin cost
x
x
x
dollars, and Leo paid
$
8
\$8
$8
in all.
Get tutor help
Pick the story that can be modeled by the equation
x
5
=
15
\frac{x}{5} = 15
5
x
=
15
.
\newline
Choices:
\newline
(A)Leah and her friends went out to dinner last night. Including tip, the bill came out to
x
x
x
dollars. The group split the bill evenly among the
5
5
5
of them. They each paid
$
15
\$15
$15
.
\newline
(B)Leah and her friends went out to dinner last night. Leah's meal cost
x
x
x
dollars, but she used a
$
5
\$5
$5
coupon. Leah only spent
$
15
\$15
$15
on her meal.
Get tutor help
Kendall made a Dance Mix playlist for her birthday party. She added
s
s
s
songs from each of her
5
5
5
favorite bands. In all, Kendall added
50
50
50
songs to her Dance Mix playlist.
\newline
Which diagram models the story?
\newline
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
5
s
=
50
5s = 50
5
s
=
50
\newline
(B)
s
5
=
50
\frac{s}{5} = 50
5
s
=
50
Get tutor help
Camilla is moving next week, and she is comparing rental vehicles that will fit all her furniture. She is deciding between a cargo van that is
7
7
7
feet long and a box truck that is
10
10
10
feet long. Camilla wants as much space as possible, so she decides to rent the box truck since it is
b
b
b
feet longer than the cargo van.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
b
−
10
=
7
b - 10 = 7
b
−
10
=
7
\newline
(B)
7
+
b
=
10
7 + b = 10
7
+
b
=
10
Get tutor help
Mr. Newton wears science-themed ties to school. In all, he has
34
34
34
ties with scientific designs. Of all the ties in his collection,
b
b
b
are bow ties and
21
21
21
are straight ties.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(
A
)
(A)
(
A
)
b
+
21
=
34
b + 21 = 34
b
+
21
=
34
\newline
(
B
)
(B)
(
B
)
b
−
21
=
34
b - 21 = 34
b
−
21
=
34
Get tutor help
Ann is making her grandfather a scrapbook for his birthday. The scrapbooking kit she bought has
15
15
15
fewer pieces of colored paper than pieces of white paper. The scrapbooking kit has
w
w
w
pieces of white paper and
35
35
35
pieces of colored paper.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
w
+
15
=
35
w + 15 = 35
w
+
15
=
35
\newline
(B)
w
−
15
=
35
w - 15 = 35
w
−
15
=
35
Get tutor help
Azalea Botanical Gardens is adding new tropical greenhouses. The gardeners will split
t
t
t
tropical plants evenly among the
3
3
3
new greenhouses. They will put
20
20
20
tropical plants in each greenhouse.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
3
t
=
20
3t = 20
3
t
=
20
\newline
(B)
t
3
=
20
\frac{t}{3} = 20
3
t
=
20
Get tutor help
The Wrap & Roll food truck is the most popular lunch spot in the city. They have
v
v
v
vegetarian wraps and
8
8
8
wraps containing meat on today's menu. There are
12
12
12
wraps on the menu in all.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
v
+
8
=
12
v + 8 = 12
v
+
8
=
12
\newline
(B)
v
−
8
=
12
v - 8 = 12
v
−
8
=
12
Get tutor help
Rose teaches ski lessons and snowboard lessons at Frosted Peak Ski Lodge. She taught
s
s
s
snowboard lessons and
6
6
6
fewer ski lessons than snowboard lessons this week. Rose taught
14
14
14
ski lessons.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
s
+
6
=
14
s + 6 = 14
s
+
6
=
14
\newline
(B)
s
−
6
=
14
s - 6 = 14
s
−
6
=
14
Get tutor help
Mary's favorite hobby is tending to her vegetable garden. The garden bed has a total area of
48
48
48
square feet. She has planted cherry tomatoes in
t
t
t
square feet of the garden and cucumbers in the other
36
36
36
square feet.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
t
+
36
=
48
t + 36 = 48
t
+
36
=
48
\newline
(B)
t
−
36
=
48
t - 36 = 48
t
−
36
=
48
Get tutor help
Craig makes bottles of bubble bath and scented soap bars. He sells them at his local farmers' market. On Saturday, he sold
b
b
b
bottles of bubble bath and
25
25
25
soap bars. Craig sold
38
38
38
items in all.
\newline
Which diagram models the story?
\newline
\newline
Which equation models the story?
\newline
\newline
Choices:
\newline
(A)
b
+
25
=
38
b + 25 = 38
b
+
25
=
38
\newline
(B)
b
−
25
=
38
b - 25 = 38
b
−
25
=
38
Get tutor help
Edmond bought a new cage for his pet rabbit since he's gotten so big. The area of the old cage's floor was
6
6
6
square feet. The area of the new cage's floor is
n
n
n
square feet larger, for a total of
8
8
8
square feet.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
n
−
6
=
8
n - 6 = 8
n
−
6
=
8
\newline
(B)
6
+
n
=
8
6 + n = 8
6
+
n
=
8
Get tutor help
Polly sells adorable barrettes and headbands for babies online. During her spring sale, she sold
b
b
b
barrettes and
45
45
45
headbands. Polly sold
80
80
80
items in all.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
b
−
45
=
80
b - 45 = 80
b
−
45
=
80
\newline
(B)
b
+
45
=
80
b + 45 = 80
b
+
45
=
80
Get tutor help
Over the weekend, Julian visited the Wondrous Wings Butterfly Museum with his family. In the Discovery Zone, he was able to observe
c
c
c
caterpillars and
8
8
8
butterflies. That's a total of
15
15
15
insects he got to see up close in all.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
c
+
8
=
15
c + 8 = 15
c
+
8
=
15
\newline
(B)
c
−
8
=
15
c - 8 = 15
c
−
8
=
15
Get tutor help
Alice signed up to bake chocolate chip and oatmeal raisin cookies for a bake sale. After she made
c
c
c
chocolate chip cookies, Alice decided to make
12
12
12
fewer oatmeal raisin cookies, since they are less popular. She only made
24
24
24
oatmeal raisin cookies.
\newline
Which diagram models the story?
\newline
Which equation models the story?
\newline
Choices:
\newline
(A)
c
+
12
=
24
c + 12 = 24
c
+
12
=
24
\newline
(B)
c
−
12
=
24
c - 12 = 24
c
−
12
=
24
Get tutor help
Victoria teaches a dog-training course at her local community center. After every trick, she rewards each dog with a treat. During Saturday's class, she gave
t
t
t
treats to each of the
6
6
6
dogs. In all, Victoria gave out
30
30
30
treats during the class.
\newline
Which diagram models the story?
\newline
\newline
Which equation models the story?
\newline
Choices:
\newline
(
A
)
(A)
(
A
)
t
6
=
30
\frac{t}{6} = 30
6
t
=
30
\newline
(
B
)
(B)
(
B
)
6
t
=
30
6t = 30
6
t
=
30
Get tutor help
Khan Academy
\newline
Donate
\newline
saidamirhonC
\newline
Fish gummy candies
\newline
Worm gummy candies
\newline
A class used catapults to launch
2
2
2
kinds of gummy candies. The dotplots record the distances the gummy candies travelled, in inches. Which statement best compares the standard deviations and the means of the distances travelled of the
2
2
2
kinds of candies?
\newline
Choose
1
1
1
answer:
\newline
2
2
2
of
10
10
10
\newline
✓
0
\checkmark 0
✓
0
\newline
0
0
0
\newline
00
00
00
\newline
0
0
0
\newline
00
00
00
\newline
0
0
0
\newline
0
0
0
\newline
Skip
Get tutor help
Яндекс
\newline
Яндекс Маркет
\newline
Khan Academy
\newline
Donate
[
‾
[\overline{ }
[
\newline
saidamirhonc
\newline
Year
\newline
Imported goods and services in billions
\newline
Exported goods and services in billions of dollars of dollars
\newline
2008
2008
2008
211
211
211
\newline
150
150
150
\newline
2009
2009
2009
\newline
163
163
163
\newline
125
125
125
\newline
The U.S. trade deficit is the difference between the total value of goods and services that are exported from the US and the total value of goods and services imported into the US from other countries. The table shows the amount of goods and services that were exported to and imported from other countries in January of
2008
2008
2008
and
2009
2009
2009
. According to the information in the table, by what percentage did the trade deficit shrink from
2008
2008
2008
to
2009
2009
2009
?
\newline
Choose
1
1
1
answer:
\newline
(A)
17
%
17 \%
17%
\newline
(B)
22
%
22 \%
22%
Get tutor help
At Amps Arcade, Anne is about to play her favorite game, Road Dash. She comes in first place half of the time. If she comes in first place for every race in a tournament, she will get her name added to the winners' board. Anne will play a
4
4
4
-race tournament today. How likely is it that her name will be added to the winners' board? Anne simulates the situation by rolling a six-sided die
4
4
4
times. Each time an even number appears, it represents Anne coming in first place. This table shows the results of
100
100
100
trials: Number of even numbers rolled
0
0
0
1
1
1
2
2
2
3
3
3
4
4
4
Number of trials
5
5
5
27
27
27
4
4
4
0
0
0
4
4
4
1
1
1
4
4
4
2
2
2
Based on Anne's results, what is the probability that her name will be added to the winner's board?
Get tutor help
Writing proportional equations
\newline
The Green Goober, a wildly unpopular superhero, mixes
3
3
3
liters of yellow paint with
5
5
5
liters of blue paint to make
8
8
8
liters of special green paint for his costume.
\newline
Write an equation that relates
y
y
y
, the amount of yellow paint in liters, and
b
b
b
, the amount of blue paint in liters, needed to make the Green Goober's special green paint.
\newline
Do NOT use a mixed number.
Get tutor help
The student council is planning a school dance. The table below shows the budget for the dance. School dance budgetItem
Funds raised
\text{Funds raised}
Funds raised
Expenses
\text{Expenses}
Expenses
Dance tickets
\quad
\quad
DJ Denny
\quad
\quad
Decorations
\quad
\quad
What is the student council's expected profit?
Get tutor help
Desmond bought a box of Bark Biscuit Bites for his dog, Champ. Champ's favorite flavor is bacon. Each dog biscuit has a
25
%
25\%
25%
chance of being bacon flavored, and Desmond takes
3
3
3
dog biscuits from the box. How likely is it that all
3
3
3
dog biscuits are bacon flavored? Desmond simulates the situation by flipping a pair of coins
3
3
3
times. Each time the coins both land on heads, it represents a bacon-flavored dog biscuit. This table shows the results of
200
200
200
trials: Number of times both coins land on heads
0
0
0
1
1
1
2
2
2
3
3
3
Number of trials
82
82
82
3
3
3
0
0
0
3
3
3
1
1
1
3
3
3
2
2
2
Based on Desmond's results, what is the probability that all
3
3
3
dog biscuits are bacon-flavored?
Get tutor help
A storm drain clogged, and Maya is on the job. Maya's hands are
1
1
1
meter above the ground. She uses a clam shell bucket to scoop up litter from
7
7
7
meters below her hands. The following equation describes this situation.
1
−
7
=
−
6
1 - 7 = -6
1
−
7
=
−
6
. what does
−
6
-6
−
6
tell us?
Get tutor help
After Batman brought the Joker to justice, the crime rate in Arkham City decreased by
12
%
12\%
12%
. Previously, the crime rate was
c
c
c
incidents per
1000
1000
1000
people. Which of the following expressions could represent the crime rate in Arkham City after Batman brought the Joker to justice?
Get tutor help
1
2
3
...
8
Next