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 preceeding minute. What is the final height of the balloon when it stops rising?
a.
760 ft
c.
450 ft
b.
900 ft
d.
560 ft

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 preceeding minute.  What is the final height of the balloon when it stops rising?
a.
760 ft
c.
450 ft
b.
900 ft
d.
560 ft

e.mccormick · Answer

@satellite73 You see a way to determine where this stops?  After 15 hours I get about 810 feet, and still going.

dan815 · Answer

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