Write the word or phrase that best completes each statement or answers the question.
Solve the problem.
-Jim has gotten scores of 87 and 85 on his first two tests. What score must he get on his third test to keep anaverage of 80 or better?
A)at least 68
B)at least 86
C)at least 84
D)at least 66

Question

Quizplus · Accepted Answer

To maintain an average of 80 or better after three tests, the total score for all three tests must be at least 240 (since 80 * 3 = 240). Jim's scores on the first two tests are 87 and 85, which sum to 172. Subtracting this from 240 gives 68, so he must score at least 68 on his third test.

Write the Word or Phrase That Best Completes Each Statement