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Mathematics 8 Online
OpenStudy (anonymous):

The length of a rectangle is 3 times the width. The area of the rectangle is 75 cm^2. Find the length and the width.

OpenStudy (anonymous):

so they give you two equations in the problem, the length relative to the width and the area. can you come up with these two equations?

OpenStudy (anonymous):

l=3w?

OpenStudy (anonymous):

l(w)=75

OpenStudy (anonymous):

yes and yes

OpenStudy (anonymous):

Okay.

OpenStudy (precal):

|dw:1367283121442:dw|

OpenStudy (precal):

|dw:1367283141920:dw|

OpenStudy (precal):

75=3w^2 now solve for w

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