Question

A 50 gallon tank is halfway full of water when it begins to leak at a rate of 3 gallons per minute. Write an equation that provides t , the number of minutes it takes the tank to become empty.

Answer 1

f(x) = 25 - 3t

Explanation:

Since 50 gallon is the FULL CAPACITY, half capacity is at 50/2 = 25 gallons

We start off with 25 gallons

Every minute, water leaks at a rate of 3 gallons, so the decrease is:

3t [where t is minutes]

Thus, the function will be

f(x) = 25 - 3t