SOLUTION: The length of a rectangle is 5 m greater than the width. The area is 300 sq m. Find the dimensions.
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Question 428724: The length of a rectangle is 5 m greater than the width. The area is 300 sq m. Find the dimensions.
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
L=W+5
A=LW
300=(W+5)W
300=W^2+5W
W^2+5W-300=0
(W-15)(W+20)=0
W-15=0
W=15 AND.
L=15+5
L=20 ANS.
PROOF:
300=15*20
300=300
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