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2
2
2
.
1.2
+
3
=
1.2+3=
1.2
+
3
=
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Math Problems
Grade 7
Add and subtract rational numbers
Full solution
Q.
2
2
2
.
1.2
+
3
=
1.2+3=
1.2
+
3
=
Addition of numbers:
Add
1.2
1.2
1.2
and
3
3
3
together.
More problems from Add and subtract rational numbers
Question
x
x
+
3
=
x
+
2
x
+
6.2
\frac{x}{x+3} = \frac{x+2}{x+6.2}
x
+
3
x
=
x
+
6.2
x
+
2
Find `x`
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Posted 2 months ago
Question
The least amount of wrapping paper needed to wrap a cube-shaped gift is
150
150
150
square inches. How long is one side of the gift?
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Posted 2 months ago
Question
Which expression is equivalent to
30.4
+
(
−
40.4
)
30.4+(-40.4)
30.4
+
(
−
40.4
)
?
\newline
30.4
−
40.4
30.4-40.4
30.4
−
40.4
\newline
40.4
−
30.4
40.4-30.4
40.4
−
30.4
\newline
−
40.4
+
(
−
30.4
)
-40.4+(-30.4)
−
40.4
+
(
−
30.4
)
\newline
−
40.4
−
30.4
-40.4-30.4
−
40.4
−
30.4
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Posted 2 months ago
Question
Solve for
n
n
n
and simplify your answer.
\newline
−
6
=
2
3
n
-6=\frac{2}{3} n
−
6
=
3
2
n
\newline
Answer:
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Posted 2 months ago
Question
3
+
2.5
×
5
−
4
×
8
=
3+2.5\times 5-4\times 8=
3
+
2.5
×
5
−
4
×
8
=
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Posted 2 months ago
Question
A local package delivery service wants to improve the efficiency of its deliveries. As a first step, the management team decides to conduct a study to determine the average length of time from the arrival of a package at the company's mail center until its delivery at a home. Which of the following methods is most likely to produce valid results?
\newline
Choose
1
1
1
answer:
\newline
(A) The team selects the
1
,
000
1,000
1
,
000
heaviest packages in a one-week, non-holiday period and records how long it takes for each package to reach its destination.
\newline
(B) The team calls
1
,
000
1,000
1
,
000
residents in their delivery area and asks them whether they have received a package from their service in the past week. They will then record how long it took for those packages to reach their destination.
\newline
(C) The team selects a random sample of
1
,
000
1,000
1
,
000
packages arriving at the center over a one-week, non-holiday period and records how long it takes for each package to reach its destination.
\newline
(D) None of the above
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Posted 2 months ago
Question
8
+
2.7
=
8+2.7=
8
+
2.7
=
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Posted 2 months ago
Question
(
1.5
−
2.9
i
)
+
(
4.3
+
1.4
i
)
(1.5-2.9 i)+(4.3+1.4 i)
(
1.5
−
2.9
i
)
+
(
4.3
+
1.4
i
)
Get tutor help
Posted 2 months ago
Question
A baker uses
3
3
3
cups
(
c
)
(c)
(
c
)
of flour to bake
2
2
2
loaves of bread. If
1
1
1
pound
(
l
b
)
(lb)
(
l
b
)
of flour is equivalent to
3
1
3
c
,
3\frac{1}{3} c ,
3
3
1
c
,
how many loaves of bread can the baker make with a
10
10
10
l
b
lb
l
b
- bag of flour?
\newline
(Round the answer to the nearest whole number.)
\newline
□
\square
□
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Posted 2 months ago
Question
Multiply:
\newline
−
0.1
×
−
2
5
=
-0.1 \times \frac{-2}{5}=
−
0.1
×
5
−
2
=
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Posted 2 months ago
