A rectangle shed is fenced with 120ft long barbed wire. If length of the shed is twice as long as the width, that is the length?

Question

Mathematics

Gemma

11 November, 17:27

A rectangle shed is fenced with 120ft long barbed wire. If length of the shed is twice as long as the width, that is the length?

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Answers (1)

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Melody Madden · Answer 1

40 ft

Step-by-step explanation:

dа ta:

(1) P = 120 ft

(2) l = 2w

Calculations:

(3) P = 2l + 2w Substitute (1) and (2) into (3)

120 = 2 (2w) + 2w Multiply

120 = 4w + 2w Combine like terms

120 = 6w Divide by 6

(4) w = 20 ft Substitute (4) into (2)

l = 2 * 20

l = 40 ft

Check:

120 = 2*40 + 2*20

120 = 80 + 40

120 = 120