Question

Warm Up#1

Julia has scored 89, 87, and 93 on her three math tests. She will take one more test and wants a test average of at least 90. What is the minimum score she needs to earn on her fourth test?

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Answer 1

Answer: the minimum score she can get to get the average score of 90 is 91

Step-by-step explanation: Add 89, 87, 93 and you get 269 any number higher than 91 will be good but 91 is the answer as 269 + 91 = 360

360 / 4 = 90 exactly