Question: In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Lisa has scored 9090, 8282,

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Lisa has scored 9090, 8282, and 9191 on the first three. What range of scores on the fourth test will give Lisa a C for the semester (an average between 7070 and 7979, inclusive)? Assume that all test scores have a non-negative value.

Express your answer in interval notation.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

For Math 1009 class in ULM use only, these notes are not to be used without written permission of editors - Liu,Ji,Morris. 1.7 Linear Inequalities Objectives: Practice solving linear inequalities....

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, David has scored 76, 80, and 84 on the first three. What range of scores on the...

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Gloria has scored 95,90 , and 92 on the first three. What range of scores on the...

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Paul has scored 75 , 80 , and 91 on the first three. What range of scores on the...

In a class in which the final course grade depends entirely on the average of four equally weighted loo-point tests, Erica has scored 86, 79, and 85 on the first three. What range of scores on the...

In a class in which the final course grade depends entirely on the average of four equally weighted 100 point tests, Harold has scored 83, 84, and 77 on the first three. What range of scores on the...

In a class in which the final course grade depends entirely on the average of four equally weighted 100 -point tests, David has scored 89,74 , and 90 on the first three. What range of scores on the...

in a class in which the final course grade depends entirely on the aver age of four equally weighted 100-point tests, Gloria has scored 75,91 , and 90 on the first three What range of scores on the...

in a class in which the final course grade depends on entirely on the average or four equally weighted 1 0 0 point tests, lisa has scored 8 6 , 8 9 , and 8 5 on the first three. what range of scores...

The Industrial\\Organizational Program Handbook Florida Tech 2013-2014 Rev: 7/31/13 Welcome to the Industrial/Organizational Psychology program at Florida Tech! We are glad you have chosen Florida...

1. Each of these systems needed significant investment in resources and capital. What do you believe was the rationale to justify the costs of these systems? What types of quantitative savings can be...

what does the following statement do? 1. while((c=getchar()!=EOF) putc(c,fl); 2. whille ((m=getw(fl))!=EOF) printf("%5d",m);

________: a type of open-end loan. Group of answer choices Installment Loan Line-of-Credit Accounts Consumer Credit Closed-End Credit

Consider the following discrete probability distribution. -10 10 20 P(X = x) 0.35 0.10 0.15 0.40 What is the probability that X is 0?