Posted by **Dennis** on Wednesday, May 12, 2010 at 7:55pm.

cory drops a bouncing ball form a height of 50 ft and it rebounds to 90% of its previous height.find the total distance the ball will have travelled when it hits the ground for the fifth time

- math -
**Damon**, Wednesday, May 12, 2010 at 9:37pm
50 + .9 * 2 * 50 + .9^2*2*50 +.9^3*2*50 +.9^4 *2 * 50

= -50 +100 + 100 (.9^1 +.9^2 + .9^3 + .9^4)

-50 + geometric series g=100 n = 5, r = .9 in

Sum5 = 100(1-.9^4)/(1-.9)

= 100 (.3439)/.1 = 344

-50 + 344 = 294

- math -
**Laura**, Sunday, November 15, 2015 at 11:51pm
An apple farmer went to town to sell a truck full of apples. At his first stop, he sold 1/3 of his apples. On the way to the next stop, he wrecked his truck and lost 1/3 of the remaining apples. Of those left, the farmer gave away 1/2 to some children. He then has 80 apples left. How many apples did the farmer have when he started his trip?

## Answer This Question

## Related Questions

- math - A ball is dropped from a height of 5 ft. Assuming that on each bounce ...
- math - a ball is dropped from a height of 3m and bounces on the ground . At the ...
- math - a ball tossed to a height of 4 meters rebounds 40% of its previous height...
- Math - A ball is thrown 16 m into the air. The ball falls, rebounds to half its ...
- Calculus - Hard rubber ball is thrown down from a building with a height of 5 ...
- math - a ball rebounds one half of the height from which it was dropped. The ...
- math - A tennis ball is dropped from a height of 7 ft. If the ball rebounds 2/3...
- Tennessee Technological university - Math if a rubber ball drops from a height ...
- Math - A ball rebounds 1/2 of the height from which it is dropped. It is dropped...
- math - a ball is dropped from a height of 5m. after each bounce, the ball rises ...

More Related Questions