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Please see picture of problem

Please see picture of problem-example-1

1 Answer

3 votes

Answer:

w = 9, l = 12

Explanation:

If w is the width and l is the length, then:

l = 2w − 6

The area of the rectangle is width times length.

A = wl

Substituting and solving:

108 = w (2w − 6)

108 = 2w² − 6w

54 = w² − 3w

0 = w² − 3w − 54

0 = (w + 6) (w − 9)

w = -6 or 9

The width is 9, so the length is 12.

User Charles Lowell
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