phillipskristap6w9hl
contestada

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.

Respuesta :

unicornzoe
To solve this problem we can set up a proportion.

[tex] \frac{6}{78} = \frac{x}{99} [/tex]

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. 

Otras preguntas