SOLUTION: Study Time and Test Grades. A mathematics instructor asserted that students' test grades are directly proportional to the amount of time spent studying. Brent studies 15 hr for a

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Question 326635: Study Time and Test Grades. A mathematics instructor asserted that
students' test grades are directly proportional to the amount of time
spent studying. Brent studies 15 hr for a particular test and gets a score
of85. At this rate, what score would he have received ifhe had studied
16 hr?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Grade is directly proportional to time.
G=k%2AT
85=k%2A15%7D%7D%0D%0A%7B%7B%7Bk=85%2F15=17%2F3
.
.
.
G=%2817%2F3%2916
G=90.6 or G=91