Question

Sally receives the following scores on her math tests: 78, 92, 83, 99. What score
does she need on the next test in order to have an average of 90 on her math
tests?

Answer 1

Sally has already taken 4 exams. she is going to sit for another one. So, total 5 exams.she wants to keep an average of 90 in 5 exams.Total score in 5 exams = 5* 90 = 450.Total in 4 exams = 78 + 92 + 83 + 99 = 352

Difference = 450 - 352 = 98.

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Answer 2

Answer:

Hey mate your answer is 352........

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