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OpenStudy (anonymous):
The length of a rectangle is three times longer than its width. The perimeter of the rectangle is 16 feet. If x represents the width of the rectangle, which equation can be used to find its value?
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OpenStudy (austinl):
The perimeter or a rectangle is, \(P=2l+2x\) And in this problem, \(l=3x\) So therefore, \(P=2(3x)+2x\) \(P=6x+2x=8x\)
OpenStudy (anonymous):
thank you @austinL
OpenStudy (austinl):
You're welcome! Can you solve it from there?
OpenStudy (anonymous):
yeah
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