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OpenStudy (anonymous):
The lab table has a perimeter of 214 inches. The length is 13 inches less than 3 times the width. How many inches long is the table?
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OpenStudy (johnweldon1993):
Well you know the perimeter would be 2L + 2W (rectangle) We know the length (L) is 13 less than 3 times the width (W) so that means... L = 3W - 13 Since we know that...we can substitute that into our equation for L so 2L + 2W = 214 would become 2(3W - 13) + 2W = 214 Can you solve this from here?
OpenStudy (anonymous):
x = 30in, the width. The length is 77in 3%2A30-13 and... 60in+%2B+154in+=214in
OpenStudy (anonymous):
L=77?
OpenStudy (johnweldon1993):
That is correct :)
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
can i get a medal
OpenStudy (anonymous):
plz
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