Solve.
-Bill needs an average of 70 on four tests in science to make the honor roll. What is the lowest score he can receive on the fourth test if his first three scores are 65,60 , and 92 ?
A) 71.8
B) 63
C) 72.3
D) 70

Question

Quizplus · Accepted Answer

To achieve an average of 70 over four tests, Bill needs a total of 4 * 70 = 280 points. The sum of his first three scores is 65 + 60 + 92 = 217. Therefore, the lowest score he can receive on the fourth test to still make the honor roll is 280 - 217 = 63.

Solve. -Bill Needs an Average of 70 on Four Tests in in Science