madelyngv97

25.07.2019 • 

Mathematics

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 78. at this rate, how many hours would she have had to study to get a score of 99? she would have had to study nothing hr to get a score of 99.

Ответ:

MGA20078

14.03.2022

Mathematics

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To solve this problem we can set up a proportion.



Then cross multiply and divide.

99*6=594/78= 7.6.

Lisa would have had to study about 7.6 hours to get a score of 99. 

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Ответ:

hollie62

02.08.2022

Mathematics

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Domain = [0, ∞).

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