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Jina has scored 76, 85, and 86 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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Feb 9, 2018
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Jina has scored 76, 85, and 86 on her previous three tests. What score does she need on her next test so that her average (mean) is 77?
Mathematics
high-school
Brendan Lesniak
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Brendan Lesniak
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Hello There!
Follow through these steps:
77 x 4 = 308
76 + 85 + 86 = 247
308 - 247 = 61.
She needs to score
61
.
Hope This Helps You!
Good Luck :)
- Hannah ❤
Camara
answered
Feb 15, 2018
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Camara
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