Chau takes classes at Westside and Pinewood.

Question

 Chau takes classes at both Westside Community College and Pinewood Community College. At Westside, class fees are
$98
per credit hour, and at Pinewood, class fees are
$115
per credit hour. Chau is taking a combined total of
13
credit hours at the two schools.
Suppose that he is taking
w
credit hours at Westside. Write an expression for the combined total dollar amount he paid for his class fees.

Answer 1

Chau is taking 13 credit hours in total, so if he is taking w credit hours at Westside, he is taking 13-w credit hours at Pinewood.

 

Class Fees = ($98 per credit hour)*(w credit hours) + ($115 per credit hour)*(13-w credit hours)

 

Class fees = 98w + 1495 - 115w

 

Class fees = -17w + 1495