Solve the problem.
-Jim has gotten scores of 84 and 77 on his first two tests. What score must he get on his third test to keep an average of 75 or greater?
A) At least 80.5
B) At least 64
C) At least 63
D) At least 78.7

Question

Quizplus · Accepted Answer

To maintain an average of 75 or greater across three tests, the total score for all three tests must be at least 225 (since 75 * 3 = 225). Jim's scores on the first two tests are 84 and 77, which sum to 161. Subtracting this from 225 gives 64, meaning Jim needs at least a 64 on his third test to maintain an average of 75 or greater.

Solve the Problem. -Jim Has Gotten Scores of 84 and 77 on His