Question

The length of a rectangle is 7 inches longer than it's width. The area of the rectangle is 260 square inches. What is the length, in inches, of the rectangle?

Answer 1

Answer:

The width cannot be negative, so w = 9, l = 16.

Step-by-step explanation:

w = the width

l = w +7

A = l · w

A= w ( w + 7 )

144 = w2 + 7w

0 = w2 + 7w - 144

0 = ( w - 9 )( w + 16 )

The width cannot be negative, so w = 9, l = 16.