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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?

User Jermane
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1 Answer

17 votes
17 votes

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.

User Dani Sancas
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