SOLUTION: Suppose your average, after taking 3 quizzes, is 76 (out of 100). What must your average be on the next 5 quizzes to increase your average to 81 out of 100
Algebra.Com
Question 885380: Suppose your average, after taking 3 quizzes, is 76 (out of 100). What must your average be on the next 5 quizzes to increase your average to 81 out of 100
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Suppose your average, after taking 3 quizzes, is 76 (out of 100).
What must your average be on the next 5 quizzes to increase your average to 81 out of 100
:
let a = the average of the next 5 quizzes
:
= 81
228 + 5a = 81 * 8
5a = 648 - 228
5a = 420
a = 420/5
a = 84 av on the last 5 quizzes
RELATED QUESTIONS
After taking 4 quizzes, your average is 76 out of 100. What must your average score be on (answered by drj)
After taking 3 quizzes, your average is 79 out of 100. What must your average score be on (answered by josmiceli)
after taking 7 quizzes, your average is 78 out of 100. what must your average score be on (answered by ankor@dixie-net.com)
Suppose your average, after taking 4 quizzes, is 72 (out of 100). What must your average... (answered by tommyt3rd)
Suppose your average, after taking 5 quizzes, is 74 (out of 100). What must your average... (answered by richwmiller)
After taking 7 quizzes, your average is 72 of 100. What must your average be on the next... (answered by Alan3354)
after taking 4 quizzes, your average is 77 out of 100. what must your average score be... (answered by Alan3354)
After taking 5 quizzes your average is 72 out of 100. What must your average score be on... (answered by macston)
After taking 5 quizzes your average is 72 out of 100. What must your average score be on... (answered by Fombitz)