Asked by EmilyS.

Pablo has scored 64, 77, and 82 on his previous three tests. What score does he need on his next test so that his average (mean) is 79?
Answered by Ms. Sue
400 * 0.79 = 316

64 + 77 + 82 = 223

316 - 223 = 93
Answered by kk
Kira has scored 61, 80, and 88 on her previous three tests. What score does she need on her next test so that her average (mean) is 77?
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