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May 30, 2015

Homework Help: algebra

Posted by tiffany on Thursday, January 20, 2011 at 3:48pm.

The length of a rectangle is 6 cm more than four times the width. If the perimeter of the rectangle is 42 cm, what are its dimensions?

a. length = 18 cm; width = 3 cm
b. length = 18 cm; width = 9 cm
c. length = 6 cm; width = 9 cm
d. length = 3 cm; width = 18 cm

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