Homework Help: Math

Posted by Anna on Saturday, May 21, 2011 at 10:47am.

The length and width of the field as a ratio of 11:7. The width is 20 meters less than the length.
How many m2 is the area?

Math - TutorCat, Saturday, May 21, 2011 at 1:48pm
L = 11x
W = 7x

W = L - 20

Substitute 11x and 7x for L and W:
7x = 11x - 20

Solve for x and plug in the following to solve for length and width.

L = 11x
W = 7x
Math - TutorCat, Saturday, May 21, 2011 at 1:49pm
Area = L*W

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