Question

you score 92, 86, 98, and 94 on your first four social studies tests. what score must you get on the fifth test to have a mean score of 90?

Answer 1

80

Explanation:

Answer 2

92 + 86 + 98 + 94 = 370

370 + X

------------- = 90

5

370 + X = 90(5)

370 + X = 450

X = 450 - 370

x = 80