SOLUTION: Hello, I'm desperately trying to solve this word problem: A ball dropped from a certain height rises after bouncing 30% of its original height. After bouncing if the ball rises

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Question 139388: Hello,
I'm desperately trying to solve this word problem: A ball dropped from a certain height rises after bouncing 30% of its original height. After bouncing if the ball rises to 2 1/2 ft.,what is the height from which it was dropped?
Thank you in advance!
Teresa

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let x="drop height" __ 2 1/2 ft. is 30 inches

30%(x)=30 in. __ x=100 in.

100 in is 8 1/3 ft