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

12.412.4 minutes

Explanation:

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

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

Substitute yy for 18.618.6 to solve for xx, the number of minutes.
18.6=1.5x18.6=1.5x
x=12.4x=12.4

Answer: The faucet was on for 12.412.4 minutes.