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Alexxx [7]
3 years ago
12

Rachel solved 50 problems of her Homework correctly and scored 62.5%. How many problems were there in the Homework?

Mathematics
2 answers:
sergiy2304 [10]3 years ago
7 0
There are 80 questions in her homework!

(Please Mark me brainliest, And also thank you for putting extra points on this question :) have a good day)
maria [59]3 years ago
3 0

Answer:

80

Step-by-step explanation:

50 problems/x total = 62.5%

50/62.5=0.8 problem for each percent

0.8 * 100 percent = 80 problems

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What is the twentieth term of the arithmetic sequence described by the<br> equation an= 3n - 10?
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Answer:

The twentieth term is 50.

Step-by-step explanation:

The equation that describes the arithmetic sequence describes it's "general term", which means that all the numbers in that sequence must follow that equation. For instance, if we want to find the first term of the sequence we must make a = 1 and we have:

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Therefore to find the twentieth term we need to make n equal to 20. This is done below:

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<em />

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