Posted by sammie on Thursday, February 10, 2011 at 5:31pm.
a ball is dropped 128 feet from the roof of a building with each bounce the ball goes up exactly half its previous height. A man is sitting at his desk on the second floor. How many times will he see the ball if his eye level is 15 feet above the ground?

math  PsyDAG, Friday, February 11, 2011 at 11:14am
Halves give you these bounces. You figure it out.
128, 64, 32, 16, 8, 4, 2, 1

math  sammie, Friday, February 11, 2011 at 4:01pm
is the answer 4X

math  sammie, Friday, February 11, 2011 at 4:36pm
is the answer 4 times

math  sammie, Saturday, February 12, 2011 at 1:20pm
can u check my answer please
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