Mathematics, 12.07.2019 10:30, uc22912

20 points you scored 83, 96, and 88 on three of your math tests. write and solve an equation to find the score you need on the fourth test so that your mean test score is 90. explain and show work!

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20 points you scored 83, 96, and 88 on three of your math tests. write and solve an equation to fin...