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

anonymous · Answer

any ideas??

e.mccormick · Answer

Ask in the math area. http://openstudy.com/study#/groups/Mathematics

e.mccormick · Answer

Hmmm... and by just that formula, it never stop rising!

anonymous · Answer

thanks sorry