In addition to his weekly salary, Ethan is paid $16 dollars per delivery. Last week, he made 5 deliveries, and his total pay was 215 dollars. Write a linear equation to find Ethan’s total weekly pay T if he makes d deliveries.
Since five deliveries were made that week with a total pay of $225, his weekly salary would be $225 - $(5*16) = $135 (Since each delivery made earns him $16). His weekly salary is a constant, so it does not need to be replaced by any letters. After we found that his weekly pay is $135, we can conclude that T = 135 + d(16), or rearranged to T = 16d + 135 (To form the linear form of ‘Y=mX+C’)