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Julli [10]
3 years ago
14

What is the length of a rectangle whose perimeter is 140 ft if its width-to-length is 2 : 5

Mathematics
1 answer:
Sauron [17]3 years ago
6 0

Answer:

50 ft.

Step-by-step explanation:

It is given that the ratio of width-to-length is 2 : 5.

Let,

Width = 2x ft

Length = 5x ft

Perimeter of the rectangle is

Perimeter=2(lenght+width)

Perimeter=2(5x+2x)

Perimeter=2(7x)

Perimeter=14x

It is given that the perimeter of the rectangle is 140 ft.

14x=140

Divide both sides by 14.

x=10

The value of x is 10.

Length=5x=5\times 10=50

Therefore, the length of the rectangle is 50 ft.

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If Heather puts in 1.36% of her salary into a retirement account and she makes $63,000 in a year, this can be solved by 1.36% x 63000. First convert 1.36% into a decimal. To do this, divide by 100.

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