a perimeter of a rectangle is 72 inches one side of the rectangle is 3 times the length of the other what are the length

2016-05-23 07:13
 
HELP I FORGOT FORMULA
1#
2016-05-23
9 and 24! 9x3 is 27 so 27+27 is 54 plus 18 is 72 welcome!:)
2#
2016-05-23
(3X + X)*2=72. Solve for X.

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