SOLUTION: If 2 cybic feet of sand weigh 90 pounds,how mych do 5 cybic feet of sand weigh?

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Question 434616: If 2 cybic feet of sand weigh 90 pounds,how mych do 5 cybic feet of sand weigh?
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
The proportion we can set up is:
2/90=5/x
Cross multiply
2x=450
x=225 pounds
Make sense?
RJ
www.math-unlock.com