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July 31, 2014

July 31, 2014

Posted by **ND** on Wednesday, September 26, 2007 at 12:35am.

A. 100m x 50m

B. 75m by 75m

C. 150m x 150m

D. no solution

Please explain answer. Thanks!

- Math -
**drwls**, Wednesday, September 26, 2007 at 1:44amLet the unknown dimensions be a and b. Solve the two equations

a b = 5000

2a + 2b = 300

Simplify to a + b = 150 and substitute 150-a for b in the first equation.

a(150-a) = 5000

a^2 - 150 a + 5000 = 0

You could either solve by factoring or just see which of the multiple choices satsifies the two equations. There IS a solution.

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