SOLUTION: If a rectangle has area 144cm^2, perimeter 50cm, and width 9cm, find its length

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Question 962917: If a rectangle has area 144cm^2, perimeter 50cm, and width 9cm, find its length
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
L=length; W=width=9cm; P=perimeter=50cm; A=area=144cm^2
A=L%2AW
144cm%5E2=L%2A%289cm%29 Divide each side by 9cm.
16cm=L ANSWER: The length is 16 centimeters.
CHECK:
P=2(L+W)
50cm=2(16cm+9cm)
50cm=2(25cm)
50cm=50cm