Suppose 1.5 liters of water come out of a faucet each minute. For how many minutes was the faucet on if 18.6 liters of water came out?

1 Answer
Jun 21, 2017

12.4 minutes

Explanation:

Define your variables.
x=minutes
y=liters of water

Set up an equation.
For every x minutes, y liters of water will come out.
y=1.5x

Substitute y for 18.6 to solve for x, the number of minutes.
18.6=1.5x
x=12.4

Answer: The faucet was on for 12.4 minutes.