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Math Problems
Grade 7
Understanding fractions: word problems
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11.1
11.1
11.1
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Math Algebra I S
2
2
2
-
1
1
1
(A) - S
2
2
2
(
2024
2024
2024
/ Vista Grande High School-INT)
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Jeanna Lehr
04
/
26
/
24
04/26/24
04/26/24
9
:
00
9:00
9
:
00
AM
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Homework:
11.1
11.1
11.1
Simplify Rational
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Expressions
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Question
×
\times
×
0
0
0
,
×
\times
×
1
1
1
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HW Score:
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×
\times
×
2
2
2
,
×
\times
×
3
3
3
of
×
\times
×
4
4
4
points
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Part
2
2
2
of
2
2
2
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Points:
×
\times
×
7
7
7
of
1
1
1
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Save
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Question list
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Question
4
4
4
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Question
4
4
4
0
0
0
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Question
×
\times
×
0
0
0
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Question
4
4
4
2
2
2
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x/, Question
4
4
4
3
3
3
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Question
4
4
4
4
4
4
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Video
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45
45
45
propare
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4
4
4
.
(
2.5
\left(2.5\right.
(
2.5
points) You are preparing a chloroform
(
C
H
3
C
l
)
\left(\mathrm{CH}_{3} \mathrm{Cl}\right)
(
CH
3
Cl
)
solution in
2
2
2
-propanol. Calculate the following. Remember to show your work.
\newline
C
l
7
C
l
ln
ln
l
n
3
H
8
\mathrm{Cl}_{7} \mathrm{Cl} \ln \ln \mathrm{ln}_{3} \mathrm{H}_{8}
Cl
7
Cl
ln
ln
ln
3
H
8
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a. How many moles of chloroform do are present in
56.0
c
g
56.0 \mathrm{cg}
56.0
cg
of a pure liquid?
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Imoles
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b. If the chloroform is dissolved in
2
2
2
-propanol for a final volume of
100
m
L
100 \mathrm{~mL}
100
mL
, what is the molar concentration?
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c. If the solution is diluted to
100
μ
M
100 \mu \mathrm{M}
100
μ
M
, what is the final volume of the solution?
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27
27
27
. AStronomy Suppose three moons
A
,
B
A, B
A
,
B
, and
C
C
C
orbit
100
100
100
,
000
000
000
kilometers above the surface of a planet. Suppose
m
∠
A
B
C
=
9
0
∘
m \angle A B C=90^{\circ}
m
∠
A
BC
=
9
0
∘
, and the planet is
20
20
20
,
000
000
000
kilometers in diameter. Draw a diagram of the situation. How far is moon
A
A
A
from moon
C
C
C
?
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Mindy is a sculptor. She has a cylinder of stone with a radius of
3
m
3\,\text{m}
3
m
and a height of
2
m
2\,\text{m}
2
m
. She needs to carve out a sphere of radius
1
m
1\,\text{m}
1
m
from the cylinder. Mindy must cut away
v
3
π
m
3
\frac{v}{3}\pi\,\text{m}^{3}
3
v
π
m
3
of stone from the cylinder in order to be left with the sphere. What is the value of
v
v
v
?
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◻
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9
9
9
. Brian has
2
2
2
,
000
000
000
small building blocks. He decided to share them with his cousin, Tia. He gave Tia
1
4
\frac{1}{4}
4
1
of the blocks. How many blocks did he keep?
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4
4
4
\newline
0
0
0
/
1
1
1
point
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BYJU'S
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The Learning
A
p
p
A p p
A
pp
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A cress seed took
8
7
\frac{8}{7}
7
8
of a week to sprout. An artichoke seed took
17
7
\frac{17}{7}
7
17
weeks to sprout.
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What question does
8
7
÷
17
7
\frac{8}{7} \div \frac{17}{7}
7
8
÷
7
17
help us answer in this situation?
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Choose
1
1
1
answer:
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(A) How much longer did the artichoke seed take to germinate than the cress seed?
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(B) How many times as long did the artichoke seed take to sprout as the cress seed?
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(C) How much longer did the cress seed take to germinate than the artichoke seed?
\newline
D How many times as long did the cress seed take to sprout as the artichoke seed?
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Simplify the following fraction:
45
48
\frac{45}{48}
48
45
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Answer:
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Simplify the following fraction:
42
48
\frac{42}{48}
48
42
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Answer:
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Convert the fraction below into a decimal
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4
5
\frac{4}{5}
5
4
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Edit the repeating and non-repeating part of the decimal:
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0.
□
□
‾
0.\square\overline{\square}
0.
□
□
Get tutor help
Convert the fraction below into a decimal
\newline
1
5
\frac{1}{5}
5
1
\newline
Edit the repeating and non-repeating part of the decimal:
\newline
0.
□
□
‾
0.\square\overline{\square}
0.
□
□
Get tutor help
Convert the fraction below into a decimal
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2
3
\frac{2}{3}
3
2
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Edit the repeating and non-repeating part of the decimal:
\newline
0.
□
□
‾
0.\square\overline{\square}
0.
□
□
Get tutor help
The expression
0.75
(
1.08
p
)
0.75(1.08 p)
0.75
(
1.08
p
)
represents the total amount Amelia paid for a jacket originally priced
p
p
p
dollars. Which changes to the original price could have resulted in this expression?
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A discount of
25
%
25 \%
25%
and then
0.08
%
0.08 \%
0.08%
sales tax
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A discount of
25
%
25 \%
25%
and then
108
%
108 \%
108%
sales tax
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A discount of
25
%
25 \%
25%
and then
8
%
8 \%
8%
sales tax
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A discount of
0.25
%
0.25 \%
0.25%
and then
108
%
108 \%
108%
sales tax
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2
2
2
. Si la gasolina cuesta
$
1.25
\$ 1.25
$1.25
el galón, ¿cuánto costarían
3
3
5
3 \frac{3}{5}
3
5
3
galones? Exprese el resultado en forma decimal.
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1
1
1
.
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These two solids have matching cross-sectional areas at every plane parallel to the base.. Do they have the same volume?
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4
4
4
. Finish the sentence:
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2
2
2
. Cavallerl sald two sollds will have the same volume If they have the same...
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There are
25
25
25
students in Ms. Nguyen's second-grade class. In the class election,
4
4
4
students voted for Benjamin,
12
12
12
voted for Sahil, and
9
9
9
voted for Maria. What percent of the class voted for Maria?
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(Ignore the \% symbol when entering your answer. For example, if the answer is
11
%
11\%
11%
, enter
11
11
11
.)
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