Question

The grade a student makes on a test varies directly with the amount of time the student spends studying. Suppose a student spends 5 hours studying and makes a grade of 89 on the test. What is an equation that relates the grade earned on a test, g, with the amount of time spent studying, t. in hours?

Answer 1

It is given that,

A student spends 5 hours studying and makes a grade of 89 on the test.

To write an equation that relates the grade earned on a test in t hours.

Let us take,

For 5 hours, the grade is 89

For 1 hour, the grade will be,

`(89)/(5)=17.8`

Then for t hours, the general equation will be,

`g=17.8t`

Hence, the answer is g=17.8t.