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Flura [38]
2 years ago
12

Mr. Rivera can grade 18 math teat in 15minutes. What is the teachers unit rate?

Mathematics
1 answer:
Andru [333]2 years ago
6 0

In this question, you're trying to find the unit rate in which the teacher can grade tests.

A unit rate is another word for "rate of change".

This means that we have to find how many tests the teacher could grade in 1 minute.

To find the unit rate, divide 18 by 15

18 ÷ 15 = 1.2

This means that Mr. Rivera can grade 1.2 tests in 1 minute.

Answer:

1.2 tests

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Factor the following:<br><br> 5∙(a+3)^2-(a+3)
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Answer: here is an example in the screenshot

it is A,B,C, or D

Step-by-step explanation:

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The sum of a students three scores is 217. If the first is 30 points more than the the second, and the sum of the first two is 1
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Answer:

First score is 90

Step-by-step explanation:

Let A represent the first score

Let B represent the second score

Let C represent the third score

A+B+C=217 equation 1

If the first score A is 30 points more than the second,B

A=B-30  equation 2

Lastly,sum of A&B is 16 more than 2C

A+B=2C+16 equation 3

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if the first score more than the first,then the first 90 while second 60 since A+B=150

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