SOLUTION: A student computed the average of her 7 test scores by adding the scores together and dividing this total by the number of tests. The average was 87. On her next test, she scored

Question 809324: A student computed the average of her 7 test scores by adding the scores together and dividing this total by the number of tests. The average was 87. On her next test, she scored a 79. What is her new test average, and how do you figure it out?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
avg_of_seven = 87
---
avg_of_eight = ( avg_of_seven*7 + 79 )/8
Answer:
avg_of_eight = (87*7 + 79 )/8 = 86
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php
RELATED QUESTIONS
a student computed the average of her 7 test scores by adding the scores together and... (answered by Wendy__Woo)

A Student has two test scores. The difference between the scores is 12 and the mean, or... (answered by ewatrrr)

The final grade for a class is calculated by taking 75% of the average test score and... (answered by fcabanski)

I have a statistics problem where I am suppose to find the mean, median, and sum of... (answered by stanbon)

Ineed help solving this word problem. on a math test, 12 students earned an A. This... (answered by jainenderkapoor)

8 scores have an average of 6, adding scores of 15 and x make the average 7, what is... (answered by richwmiller)

a student has two test scores. the difference between the scores is 12 and the mean or... (answered by robertb)

Could someone help me with this word problem please ? Solve by any method and show... (answered by mukhopadhyay,Paul)

A student received test scores of 82%, 94%, 89%, and 91%. What is the student's test... (answered by josmiceli)