Problema Solution
A ball dropped from a certain height rises after bouncing to 40% of its
original height. After bouncing if the ball rises to 8 ft. What is the height
from which it was dropped?
Answer provided by our tutors
use the proportion is/of = %/100
8 is 40% of what height?
8/h = 40/100 cross multiply to solve
800 = 40h
20 = h
the original height was 20 ft