Question

An English instructor asserted that​ students' test grades are directly proportional to the amount of time spent studying. Lisa studies 6 hr for a particular test and gets a score of 74. At this​ rate, how many hours would she have had to study to get a score of ​98?

Answer 1

Explanation:

Set up a proportion. x stands for hours that we need to find out.

`(6hrs)/(74score) = (xhrs)/(98score)\\ 6(98)=74(x)\\588= 74x\\588/74=x\\8=x`

**the answer was 7.9 BUT I rounded it to 8.

Lisa would need to study for 8 hours to get a score of 98.