Question

your summer jobs include working for a lawn mowing service and a car wash. last week you worked

• 18 hours mowing lawns
• 4 hours at the car wash

you are paid $12 per hour at the car wash.
what is the amount per hour you make mowing lawns if your total earnings for last week was $345?
$\square$

Explanation:

Step1: Calculate car wash earnings

$\text{Car wash earnings} = 4 \times 12 = 48$

Step2: Find lawn mowing earnings

$\text{Lawn mowing earnings} = 345 - 48 = 297$

Step3: Compute hourly lawn rate

$\text{Hourly lawn rate} = \frac{297}{18} = 16.5$

Answer:

$\$16.50$