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Inga [223]
3 years ago
13

I do not understand this question, anyone help? Most brainiest for the right answer!

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
6 0

Answer:

56.7

Step-by-step explanation:

We know

mean = sum / count, with count being the amount of papers corrected in this case. We want to find the sum of all the papers as well as the count to figure out the mean of all papers.

For Tony's papers,

mean = sum / count

50 = sum / 40

multiply both sides by 40 to isolate the sum

sum = 50 * 40 = 2000

For Alice's papers,

mean = sum / count

70 = sum / 20

multiply both sides by 20 to isolate the sum

70 * 20 = sum = 1400

The total sum of all 60 papers is equal to the sum of 40 papers + the sum of the remaining 20 papers, or 2000 + 1400 = 3400. The mean of the 60 papers is therefore

mean = sum / count

mean = 3400/60 ≈ 56.7

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Step-by-step explanation:

Hi, to answer this question we have to write an equation for William and Sylvia.

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What postulate can be used to prove the triangles are congruent?
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If you found this helpful, please make this the brainliest answer! :)


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3 years ago
Anya says, "62,996 rounds to 63,000"
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Answer:

hundreds

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