Fill in the blank a ball is dropped from a height of 10 meters. each time it bounces, it reaches 50 percent of its previous height. the total vertical distance the ball has traveled when it hits the ground the fifth time is meters.

10 <=== first time

10/2=5 <=== second time

5/2=2.5 <=== third time

2.5/2= 1.25 <== fourth time

1.25/2= 0.625 <=== fifth time

Add up all the numbers.

10+5+2.5+1.25+0.625= 19.375

It has traveled a vertical distance of 19.375 meters. 

I hope this helps!
~kaikers

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