McGraw Hill Integrated II, 2012
MH
McGraw Hill Integrated II, 2012 View details
Standardized Test Practice

Exercise 4 Page 878

Use the given information to make a proportion.

F

Practice makes perfect
We are told that in the random survey conducted by Eddie, out 50 students 14 spend more than 2 hours each night doing homework. By dividing 14 by 50 we can find the percentage of the students who do homework for more than 2 hours of the total number of the survey participants. 14/50We also know that there are 421 students at Eddie's school. Let x be the number of students at Eddie's school that spend more than 2 hours each night on homework. Assuming that their percentage is about the same, as the one in the survey, we can form the following proportion. 14/50=x/421 Let's solve it and find the value of x.
14/50=x/421
7/25=x/421
7/25* 421=x
117.88=x
118=x
Based on Eddie's survey, about 118 students in his school spend more than 2 hours each night doing homework. Therefore, the answer is F.