Question

The time t (in minutes) requires to empty A tank of waste water varies inversely with the rate r (in gallons per minute) of pumping. The constant of variation is 56. Find the time it will take to empty the tank when the rate is 4 gal/min

Answer 1

14 mins

Explanation:

t = k/r

k = 56

t = 56/r

r = 4

t = 56/4

t = 14 mins