Question
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
A) 261.15
B)279.33
C)281.25
D)732.50
Answers
bobpursleyl
what is 500(15/20)^2