Suppose you drop a tennis ball from a height of 6 feet. After the ball hits the floor, it rebounds to 80% of its previous height. How high will the ball rebound after its third bounce? Round to the nearest tenth.

Question

anonymous · Answer

Well i think it might be 4.1.

anonymous · Answer

Okay yeah its 4.1. I had to make sure.

anonymous · Answer

Can you explain how you got that?

anonymous · Answer

Sure

tkhunny · Answer

6 down

6*0.8 = 4.8

Bounce #1
4.8 up and 4.85 down

4.8*.8 = 3.84

Bounce #2
3.84 up and 3.84 down

3.84*.8 = 3.072

Bounce #3
3.072 up and 3.072 down

3.072*.8 = 2.4576 UP and we are done.  It's an accounting problem.

anonymous · Answer

Sorry it taking me long my computer is laggy i might have to restart it real quick

anonymous · Answer

It's ok tkhunny explained it already :P

anonymous · Answer

Okay (: