Susan determined that the expression below is equal to 7.59 . 15.91 subtract 8.32

Mathematics

1 answer:

weqwewe [10]2 years ago

3 0

The answer to your question is 7.59 so shes right

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Marla did 65 sit-up each day for one week. Use dostributive to solve

Inessa [10]

7×65 7×(60+5)
(7×60) (7×5)
(420)+(35)
The answer is 455

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2 years ago

Bread and sugar cost 110 together,bread cost 100 more than sugar,how much does sugar cost?

dangina [55]

First write an equation system based on the problem
We can write "Bread and sugar cost 110 together" as
∴ b + s = 110
We can write "bread cost 100 more than sugar" as
∴ b = 100 + s

Second, solve the equation system by subtitution method
Subtitute b with (100+s) in the first equation, and we'll find the value of s
b + s = 110
(100 + s) + s = 110
100 + 2s = 110
2s = 110 - 100
2s = 10
s = 10/2
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The cost of the sugar is 5

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2 years ago

Use rounding to estimate 0.93+0.18 plz help me

Anastasy [175]

0.93 = 0.9
0.18 = 0.2

0.9 + 0.2 = 1.1

Answer 1.1

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2 years ago

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Solve for the formula C=2pir solve for r

Ulleksa [173]

C = 2pi r
C/2 Pi = r.

I believe this would be the solution.

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A rectangle swimming pool is 8 feet deep. One side of the pool is 4.5 times longer than the other. The amount of water needed fo

wel

The side lengths of the pool 10 ft and 45 ft.

SOLUTION:

Given, a rectangle swimming pool is 8 feet deep.

One side of the pool is 4.5 times longer than the other.

Let the length of pool be n feet, the width will be 4.5n feet

The amount of water needed for the swimming pool is 3600 cubic ft

We have to find the dimensions of the pool. Now, we know that,

$\begin{array}{l}{\text {volume of pool}=\text {depth} \times \text {length } \times \text {width}} \\\\ {\rightarrow 3600 \text { cubic } f t=8 \text { feet } \times \text { n feet } \times(4.5 n) \text { feet }} \\\\ {\rightarrow 8 n \times 4.5 n=3600} \\\\ {\rightarrow 36 n^{2}=3600} \\\\ {\rightarrow n^{2}=100}\end{array}$

On taking square root on both sides we get,

$\begin{array}{l}{\rightarrow\sqrt{n^{2}}=\sqrt{100}} \\\\ {\rightarrow n=10 \mathrm{ft}}\end{array}$

So, the width will be $4.5 n=4.5 \times 10=45 \mathrm{ft}$

5 0

2 years ago