The proceeds from a car wash are directly proportional to the number of cars washed. The total after 9 cars was $180. How much can be raised if 60 cars are washed?
60 cars washed?

$1200

Step-by-step explanation:

Our revenue is directly proportional to the number of cars. That means our revenue is increasing at a constant rate, and thus, we are getting the same amount of money per car. That means we can find out how much we get from washing 1 car.

$20 per car.

If we washed 60 cars, we'd earn 60 * $20:

$1200

fd

step-by-step explanation: