Question

Akeem and Jack are discussing their friend's new swimming pool. It is rectangular in shape. Akeem says he knows that it has a perimeter of 90 feet. Jack says he knows that it has a width of 5 yards. What is the length of the swimming pool in yards?

Answer 1

Answer:

The length of swimming pool is 10 yards.

Step-by-step explanation:

Given,

Perimeter= 90 feet

Width= 5 yards

As we have to find the length in yards, therefore, we will convert perimeter in yards also.

As we know,

1 Yard = 3 feet

Therefore,

Dividing the perimeter by 3 to convert it into yards.

$90\ feet = \frac{90}{3} \ yards\\90\ feet=30\ yards$

The formula of perimeter of rectangle is;

P= 2(l+w)

Putting values of perimeter and width;

$30=2(l+5)\\30=2l+10\\2l=30-10\\2l=20\\l=\frac{20}{2} \\l=10$

The length of swimming pool is 10 yards.

Keywords: Perimeter, linear equation

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