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4 years ago

36 is what percent of 120

Mathematics

2 answers:

garri49 [273]4 years ago

8 0

What you do is make a proportion

1. x/100=36/120

2. 100 x 1.2 = 120

3. 36÷1.2=30

Answer= 30%

Dafna1 [17]4 years ago

6 0

x%*120=36

x/100 *120=36

120x/100=36

120x=3600 /:120

x=30

⇒36 is 30% of 120

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2 years ago

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1 year ago

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3 years ago

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The function of the length z in meters of the side parallel to the wall is A(z) = z/2(210 - z)

<h3>How to write a function of the length z in meters of the side parallel to the wall?</h3>

The given parameters are:

Perimeter = 210 meters

Let the length parallel to the wall be represented as z and the width be x

So, the perimeter of the fence is

P = 2x + z

This gives

210 = 2x + z

Make x the subject

x = 1/2(210 - z)

The area of the wall is calculated as

A = xz

So, we have

A = 1/2(210 - z) * z

This gives

A = z/2(210 - z)

Rewrite as

A(z) = z/2(210 - z)

Hence, the function of the length z in meters of the side parallel to the wall is A(z) = z/2(210 - z)