Posted by **Anonymous** on Thursday, April 18, 2013 at 8:09pm.

The strength of a beam varies inversely with the square of its length. If a 15-foot beam can support 500 pounds, how many pounds can a 20-foot beam support?

A) 261.15

B)279.33

C)281.25

D)732.50

- Algebra 2 -
**bobpursleyl**, Thursday, April 18, 2013 at 8:30pm
what is 500(15/20)^2

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