posted by .

Each person has taken four tests and has one more test to take.Find the score that each person must make to change the mean or median as shown

Barry has scores of 93,84,86,and75.He wants to raise the mean to 86

Mean = sum of scores/number of scores

(93+84+86+75+x)/5 = 86

Solve for x.

x-14=-3 one step equation

baryy has scores of 93,84,86,and 75. he wants to raise the mean to 86

Barry has scores of 93 84 86 and 75. He wants to raise the mean to 86.

## Similar Questions

1. ### math

Business and finance. The following scores were recorded on a 200-point final examination:193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183.(a) Find the mean final examination score.(b) Find the median final …
2. ### Math

To get an A in psychology, a student must score an average of 90 on four tests. Scores on the first three tests were 96,92,88. What is the lowest score the student can make on the last test and still get an A?
3. ### math

To get a C in physics, a student must score an average of 70 on four tests. Scores on the first three tests were 63, 85, and 82. What is the lowest score the student can make on the last test and still get a C?
4. ### Derrick

John kept track of all his math and reading test scores throughout the year as shown in the table below. Test 1:90math 80reading Test 2:75math 90reading Test 3:80math 70reading Test 4:90math 75reading Test 5:95math 90reading What is …
5. ### math

A student has a mean score of 88 on five tests taken. What score must she obtain on her next test to have a mean (average) score of 80 on all six tests?
6. ### math

Jennifer's scores on her first four science tests were 85, 76, 89 and 92. What score must she make on the fifth test to have the mean of the five tests equal 85?
7. ### Math

105 91 82 59 97 72 72 88 81 What is the mode of these scores?
8. ### Math

In your​ class, you have scores of 73,85,76, and 92 on the first four of five tests. To get a grade of Upper C, the average of the first five tests scores must be greater than or equal to 70 and less than 80. a) Solve an inequality …
9. ### Math

Karl's scores on the first five science tests are shown in the table. Test 1 Test 2 Test 3 Test 4 Test 5 85 84 90 95 88 Part A. Write am inequality that represents how to find the score he must receive on the sixth test to have an …
10. ### Algebra

Test scores of average 7th grade class are: 77,83,92,66,89,74,98,79,85,75,80,88,76,96,84,100,71,93,70,82 The mean is 82.9 and the standard deviaition is 9.7 1. What score is in the 80th percentile?

More Similar Questions