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OpenStudy (anonymous):
The length of a rectangle is three times its width. If the perimeter of the rectangle is 48ft, find its area
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hartnn (hartnn):
so, L=3W perimeter = 2(L+W) = 48 can you find L and W from these 2 equations ?
OpenStudy (anonymous):
L=24-w w=24-L
hartnn (hartnn):
yes, put that in L=3w
OpenStudy (anonymous):
w=6? L=18?
hartnn (hartnn):
absolutely correct! :) good.
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hartnn (hartnn):
area = l*w =... ?
OpenStudy (anonymous):
108 is the area?
hartnn (hartnn):
correct :)
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