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Ann [662]
3 years ago
10

Lynn has grades of 93, 75, and 86 on three math tests. What grade must she make on the next test to have an average of exactly 8

1 for the four tests?
Mathematics
1 answer:
deff fn [24]3 years ago
5 0
(93+75+86+x)/4=81
93+75+86+x=324
The sum of the scores is 324. Now solve for x:
254+x=324
x=70

The answer is 70
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Answer:

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Step-by-step explanation:

You can try the answers to see which works. (The first one does.)

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"Equating exponents" is essentially the same as taking logarithms.

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Step-by-step explanation:

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Grant plans to evaporate enough water from 22 gallons of a 16% ammonia solution to make a 24% ammonia solution. Which equation c
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Given:

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