A student's tuition ( T ) at a community college varies directly with the number of credits ( c ) carried by the student. If the tuition is $1080 for 9 credits find the tuition for 15 credits.
A) $1500
B) $1750
C) $1800

Question

Quizplus · Accepted Answer

We can set up a proportion:

Tuition/credits = constant

So, for the given situation:

1080/9 = k

k = 120

Now we can use this constant to find the tuition for 15 credits:

Tuition/15 = 120

Tuition = 1800

Therefore, the tuition for 15 credits is $1800, which is answer choice C.

A Student's Tuition ( T ) at a Community College