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3 years ago

Please help me with this homework

Mathematics

2 answers:

jenyasd209 [6]3 years ago

8 0

Answer:

the answer is 45

Step-by-step explanation:

first you do 9 divided by 12 you get .75

then you multply that by 60 because there is 60 secs in a minute

Have a good day and please mark me brailest

satela [25.4K]3 years ago

3 0

Answer:

Step-by-step explanation:

9x60=540

540/12= 45

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less because it equals 0.85

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2 years ago

List the steps to solve the following equation: 5x - 6 = 44 then solve x

Dafna1 [17]

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2 years ago

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Karo-lina-s [1.5K]

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Step-by-step explanation:

only 35 from A and 37 from B fit the range, so 35+37 is 72

Mr. Willams

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2 years ago

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A rectangle has a width of 2.5. When the length of this rectangle is decreased by 5 inches, the new area of the rectangle is 17.

kati45 [8]

<h3><u>Part A: An equation to represent this situation, where x represents the original length of the rectangle is:</u></h3>

$17.5 = (x-5) \times 2.5$

<h3><u>Part B: Original length of the rectangle is 12 inches</u></h3>

<em><u>Solution:</u></em>

Given that,

A rectangle has a width of 2.5

Therefore,

width = 2.5 inches

Let "x" be the original length of the rectangle

When the length of this rectangle is decreased by 5 inches

Therefore,

New length = x - 5

The new area of the rectangle is 17.5 square inches

Therefore,

<em><u>The area of rectangle is given as:</u></em>

$Area = length \times width$

$17.5 = (x-5) \times 2.5\\\\17.5 = 2.5x - 12.5\\\\2.5x = 17.5 + 12.5\\\\2.5x = 30\\\\x = 12$

Thus original length of the rectangle is 12 inches

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3 years ago

It takes 12 painters to paint the walls of a school in 21 days. In how many days the same job will be completed with 14 painters

nikklg [1K]

Answer:

18 days.

Step-by-step explanation:

We have been given that 12 painters paint the wall of a school in 21 days.

So the wall painted by one painter will paint the wall in $21\times 12\text{ days}=252\text{ days}$

As one painter will paint the wall in 252 days, so to find the number of days it will take to paint the same wall by 14 painters, we will divide time taken by one painter (252) by 14.

$\text{Time take by 14 painters to paint the wall}=\frac{252}{14}$

$\text{Time take by 14 painters to paint the wall}=18$

Therefore, it will take 18 days to paint the same wall by 14 painters.

8 0

3 years ago