SOLUTION: Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution. A rectangular rug is 3 feet longer than it is wide. If the area of the rug

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution. A rectangular rug is 3 feet longer than it is wide. If the area of the rug       Log On


   

Question 269231: Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution.
A rectangular rug is 3 feet longer than it is wide. If the area of the rug is 40 square feet, find the length and the width.
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
"A rectangular rug is 3 feet longer than it is wide." L=3%2BW
"If the area of the rug is 40 square feet." L%28W%29=40
L%28W%29=40
L=3%2BW
%283%2BW%29%28W%29=40
%283W%2BW%5E2%29=40
%283W%2BW%5E2%29-40=40-40
W%5E2%2B3W-40=0 can do quadratic formula or its just faster to guess, i guessed W=5
W=5 it works 5^2+3(5)-40=0 25+15-40=0 40-40=0
L=3%2BWplug in W=5
L=3%2B5
L=8
problem solved