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3 years ago

9

Melissa has scored 83 , 84 , 93 , 77 , and 85 on her previous five tests. what score does she need on her next test so that her

average (mean) is 83 ?

1 answer:

pantera1 [17]3 years ago

7 0

83 x 6 = 498

all six of her scores need to equal at least 498 for an 83 average

83 + 84 + 93 + 77 + 85 = 422

498-422 = 76

she needs a 76

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