4.

The amount of a person’s paycheck p varies directly with the number of hours worked t. For 22 hours of work, the paycheck is $126.50. Write an equation for the relationship between hours of work and pay.

1 answer

To express the relationship between hours worked \( t \) and the paycheck \( p \), we can use the concept of direct variation. The formula for direct variation is:

\[ p = kt \]

where \( k \) is the constant of proportionality.

Given that for 22 hours of work, the paycheck is $126.50, we can substitute these values into the equation to find \( k \):

\[ 126.50 = k \times 22 \]

To find \( k \), we divide both sides by 22:

\[ k = \frac{126.50}{22} = 5.75 \]

Now, we can write the equation that relates the hours of work to the paycheck:

\[ p = 5.75t \]

This equation shows that the paycheck \( p \) varies directly with the number of hours worked \( t \) at a rate of $5.75 per hour.