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laila [671]
3 years ago
5

(SHOW WORK! Need by tomorrow!) Write a system of equations to describe the situation below, solve using substitution, and fill i

n the blanks.
Two students in Mr. Kelley's class, Tori and Cora, have been assigned a workbook to complete at their own pace. They get together at Tori's house after school to complete as many pages as they can. Tori has already completed 16 pages and will continue working at a rate of 5 pages per hour. Cora has completed 13 pages and can work at a rate of 8 pages per hour. Eventually, the two students will be working on the same page. How long will that take? How many pages will each of them have completed?


After _ hours, Tori and Cora will have each completed _ pages in their workbooks.
Mathematics
2 answers:
Leto [7]3 years ago
7 0

Answer:

1 hour later , 21 pages read

Step-by-step explanation:

x hour later they will read the same number of pages

Tori: 16 + 5x

cora: 13 + 8x

16 + 5x = 13 + 8x

minus 5x each sides: 16 = 13 + 3x

minus 13 each sides: 3 = 3x

divide 3 each sides: x = 1

1 hour later both of them will read 16 + 5 x 1 = 21 pages

check cora: 13 + 8 x 1 = 21

Yuliya22 [10]3 years ago
6 0

Answer:

1 hour later , 21 pages read

Step-by-step explanation:

After 1 hour, Tori and Cora will have each completed 21 pages in their workbooks.

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In this problem, we explore the effect on the standard deviation of adding the same constant to each data value in a data set. c
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The standard deviation of both the data are the same which is 3.67 and adding the same constant c to each data value results in the standard deviation remaining the same.

<h3>What is the standard deviation?</h3>

It is defined as the measure of data disbursement, It gives an idea about how much is the data spread out.

We have a data set:

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As we know the formula for standard deviation is:

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Here σ is the standard deviation

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After calculating the standard deviation will be:

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Add 8 to each data value to get the new data set 16, 24, 22, 16, 24.

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The standard deviation of both the data are same we can say the standard deviation does not change when we add a constant to each data value.

Adding the same constant c to each data value results in the standard deviation remaining the same.

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I need help fast. I don't get it
myrzilka [38]

Answer: I believe its 119 Degrees

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