The amount of money that Sarah earns varies directly with the number of hours worked. If Sarah earns $320 for working 40 hours, determine the constant of proportionality.(1 point)

Question

$
per hour

Answer 1

To determine the constant of proportionality, we need to find Sarah's earnings per hour.

Given that Sarah earns $320 for working 40 hours, we can calculate her earnings per hour by dividing her total earnings by the number of hours worked:

\[ \text{Earnings per hour} = \frac{\text{Total Earnings}}{\text{Total Hours Worked}} = \frac{320}{40} \]

Calculating this gives:

\[ \text{Earnings per hour} = 8 \]

Therefore, the constant of proportionality is $8 per hour.