Chetan has an average of 77on his first 3 math tests. He wants an average of 80. What equation can be used to find s, the score
Chetan would need on the 4th test to achieve this average?
2 answers:
He needs an 83%
if you use the equation (77-x)/2=80 it’ll tel you the average he needs to achieve his goal
The answer is 89 percent because (80-77)x3=9 so 89
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