Savannah was paid $87 for 12 hours of babysitting and $65.25 for 9 hours. What is the constant of proportionality that describes this relationship?

Answer 1

To find the constant of proportionality, we need to find the ratio of the amount paid to the number of hours.

For the first scenario, the ratio is $87 / 12 hours = $7.25/hour.

For the second scenario, the ratio is $65.25 / 9 hours = $7.25/hour.

Since the ratio is the same in both scenarios, the constant of proportionality that describes this relationship is $7.25/hour.