The perimeter of the rectangle below is 18 feet. Write an equation that shows how to find the perimeter using the given lengths. Then identify the length and width of the rectangle.
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RhondaSommer (rhondasommer):
so l and w is 2x and x
RhondaSommer (rhondasommer):
so 2(2x*x) :)
OpenStudy (annie12m):
ok thanks!
RhondaSommer (rhondasommer):
yeah no prob
OpenStudy (annie12m):
am i supose to do destribute property on the last step?
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OpenStudy (annie12m):
@RhondaSommer
OpenStudy (annie12m):
what you think @stefancipe
OpenStudy (mathmale):
Quick review: The perimeter formula for the rectangle is 2L + 2W=P.
Here P is given and is 18 feet. Thus, equate 2L + 2W to 18 feet.
We are told that L=2x and W=1x. thus, our Perimeter formula becomes
2(2x) + 2(1x) = 18.
Annie: multiply out the left two terms, one at a time, independently.
OpenStudy (mathmale):
Then add the 2 terms on the left together and equate them to 18. type your answer here: