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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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?
