Question

A hot air balloon rises 90 feet in its first minute of flight. In each succeeding minute, it rises only 90% as far as it did during the preceding minute. What is the final height of the balloon?

Answer 1

`s_oo = a/(1 - r)`

`s_oo = 90/(1 - 9/10)`

`s_oo = 90/(1/10)`

`s_oo = 900`

Hence, the final height is `900" feet"`.

Hopefully this helps!