The amount of money that Sarah earns
directly with the number of hours worked if she earns $320 for working 40 hours determine the cost of proportionality
To find the cost of proportionality, we need to determine the rate at which Sarah earns money per hour worked.
The cost of proportionality can be calculated using the formula:
Cost of proportionality = Total amount earned / Total number of hours worked
In this case, Sarah earns $320 for working 40 hours. Plugging these values into the formula, we get:
Cost of proportionality = $320 / 40 hours
Simplifying the expression, we find:
Cost of proportionality = $8/hour
Therefore, the cost of proportionality is $8 per hour.