SOLUTION: The perimeter of a rectangle is 286 centimeters. If the ratio of its width to its length is 3 to 10, find the dimensions of the rectangle.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The perimeter of a rectangle is 286 centimeters. If the ratio of its width to its length is 3 to 10, find the dimensions of the rectangle.      Log On


   

Question 883288: The perimeter of a rectangle is 286 centimeters. If the ratio of its width to its length is 3 to 10, find the dimensions of the rectangle.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P=2%2A%28L%2BW%29=286
L%2BW=143
.
.
W%2FL=3%2F10
W=%283%2F10%29L
Substitute,
L%2B%283%2F10%29L=143
%2813%2F10%29L=143
L=143%2810%2F13%29
highlight%28L=110%29
Then,
W=%283%2F10%29L
W=%283%2F10%29%28110%29
highlight%28W=33%29