Question 253944
The area of a rectangle is 6720 square feet.
 The ratio of the width to the length is 7:15.
 Find the length and the width.
:
Let x = the multiplier
:
15x * 7x = 6720
105x^2 = 6720
x^2 = {{{6720/105}}}
x^2 = 64
x = {{{sqrt(64)}}}
x = 8 is the multiplier
then
15*8 = 120 ft is the length
and
7*8 = 56 ft is the width
:
:
Check: 120 * 56 = 6720