A rectangular photograph has an area of 66 square inches. If the width of the photograph is 5 inches less than its​ height, find the dimensions of the photograp

Question

 I do not understand how to find the width and length for the problem.

Answer 1

A = hw

w = h - 5

 

66 = h(h - 5)

66 = h² - 5h

h² - 5h - 66 = 0

(h - 11)(h + 6) = 0

 

h - 11 = 0

h = 11

 

h + 6 = 0

h = -6

This is out because measure is positive.

 

w = 11 - 5

w = 6

 

The photograph is 11" x 6".