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Makovka662 [10]
4 years ago
14

Yoko has scored 81 , 84 , 84 , 69 , and 76 on her previous five tests. What score does she need on her next test so that her ave

rage (mean) is 81 ?
Mathematics
1 answer:
kkurt [141]4 years ago
7 0
Took must make a 92 on the next test.
(81+84+84+69+76+x)/6=81
(394+x)/6=81
Multiply by 6 on both sides
394 + x = 486
Subtract 394 from both sides.
x= 92
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A.45<br> B.30<br> C.90<br> D.180<br> E.40<br> F.55<br> G.130<br> H.50
brilliants [131]

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using the formula

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slope will also be 2/3

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