Aswimming pool could be drained in 25 hours. a hose could fill that same pool in 20
hours. starting with an empty pool with the drain left open, how long would it take the
hose to fill the pool?

square root

step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

the answer is c.

step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed