SOLUTION: The length of a rectangle is three times its width. The perimeter of the rectangle is 348. Find its lengths

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Question 39035This question is from textbook
: The length of a rectangle is three times its width. The perimeter of the rectangle is 348. Find its lengths This question is from textbook

Found 2 solutions by checkley71, Paul:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
2L+2W=PERIMETER OR 2*3W+2*W=348 OR 6W+2W=348 OR 8W=348 OR W=43.5 THEN THE LENGTH IS 3*43.5=130.5
PROOF 2*130.5+2*43.5=348 OR 261+87=348 OR 348=348

Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
Length = 3x
Width = x
Equation:
2(3x+x)=348
8x=348
x=43.5
3(43.5)=130.5
Hence, the length is 130.5 cm and the width is 43.5 cm.
Paul.