SOLUTION: You scored the following grades on your first three math tests: 71, 78, 81. You only have one test remaining. What is the highest possible test average you can get?

Question 973768: You scored the following grades on your first three math tests: 71, 78, 81. You only have one test remaining. What is the highest possible test average you can get?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The highest score on the last test is presumably 100.
Add 100 to your current total, and you get 330. That divided by 4 is 82.5
Average is total/number.
total is number*average.
You can work both ways to deal with such problems.
RELATED QUESTIONS
You scored the following grades on your first three math tests: 71, 78, 81. You only have (answered by Alan3354)

You scored the following grades on your first three math test 71,78,81 what is the... (answered by aYummyNoodle)

in math class your average grade for the first three tests is 81. You want to raise your... (answered by stanbon)

in math class your average grade for the first three tests is 81. You want to raise your... (answered by scott8148)

(3.) The average of your first three test grades is 78. What grade must you get on your... (answered by Earlsdon)

An average of 80 is needed to obtain a grade of B in this course. Suppose your grades... (answered by richard1234)

Kim�s average score on her first three math tests is 78. She scored 63 on the first test. (answered by Fombitz)

latimer earned the following score on his first four tests: 78%, 82%, 81%, 76%. what is... (answered by MathLover1)

Your grades on five math tests are 95,86,79,88,83. What grad do you need on the sixth... (answered by SAT Math Tutor,stanbon)