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Annette [7]
3 years ago
13

uma wanted to have a test average of 85%. On her first 7 tests she averaged 83% on her tests. what does she need to get on her 8

th test to have an overall average of 85%
Mathematics
1 answer:
UkoKoshka [18]3 years ago
7 0

Answer:

99%

Step-by-step explanation:

83% * 7 tests = 581

\frac{581+x}{8} =85

solve for x (the percentage needed on the 8th test)

x = 99%

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Step-by-step explanation:

What is 40% of 400?

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  • P is 40%, X is 400, so the equation is 40% * 400 = Y
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