02-10-2018
Mathematics

contestada

Lisa studies 5 hours for a particular test and gets a score of 77. At this rate, how many hours would she have to study to get a score of 99?

Respuesta :

moony29 moony29

09-10-2018

77/5=99/x
77x=5*99
77x=495
x=495/77
x=6.4
she needs to study 6.4 hrs to get 99

Answer Link

Otras preguntas

The theme of this passage from the Declaration of Independence is best described as: (5 points) connections and correspondence were interrupted many attempts we

accurately describe the roles of the popes and patrons of the arts in restoring the city of Rome?

in a pet store the number of dogs is 12 more than three times the number of cats. If the pet store has 21 dogs how many cats does it have

Which of these shifts took place during the Second Industrial Revolution? (A) a shift in population from urban to rural areas (B) a shift from an agrarian econo

A farmer produces two types of corn plants. One has larger sized kernels but fewer yields and another has smaller sized kernels with high yield. He wants to pro

Why does Mark Twain call the economic and social conditions depicted in his novel "an entirely ideal state of society"

there are more bones in the arm than in the leg

True or False: Conflict sociologists seek to explain educational achievement by looking at the interaction that takes place among students and teachers.

five sixths plus one twelfths

17qt is greater , less , equal to 4 gal