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# help plz!

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153
6

When a Cray-Ze-Ball is dropped, it bounces to half the height it was dropped from. If a Cray-Ze-Ball is dropped from a height of $6$ feet, how far has it traveled when it touches the ground the $5$th time?

Jun 7, 2019

### 6+0 Answers

#1
+476
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So we can solve this by just keep dividing by 2 so we start with 6 and then divide by 2  5 times down...

$$\frac{6}{2} = 3$$

$$\frac{3}{2} = 1.5$$

$$\frac{1.5}{2} = 0.75$$

$$\frac{0.75}{2} = 0.375$$

$$\frac{0.375}{2} = 0.1875$$

and thats our answer 0.1875

Jun 7, 2019
#2
+1014
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Smart

~Nickolas

Nickolas  Jun 7, 2019
#3
+103122
+3

We have

6 [ 1 - 5^(5-1) ] / [ 1 - .5]  + 6  =  17.25 ft

Jun 7, 2019
#4
+476
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Oh boy I misinterpeted it again sorry guys : /

HiylinLink  Jun 8, 2019
#5
+103122
+1

No big deal, HL.....we all make mistakes on here

CPhill  Jun 8, 2019
#6
+1

Hey this is from a AOPS thingy. I go there so I know

Jun 8, 2019