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Bumek [7]
2 years ago
8

The sum of two numbers is 27. One number is 2 times as large as the other. What are the numbers?

Mathematics
2 answers:
Alex2 years ago
6 0

Answer:

9 and 18

Step-by-step explanation:

x+y=27\\x=2y\\2y+y=27\\3y=27\\y=27/3=9\\x=27-9=18

masya89 [10]2 years ago
5 0

Answer: <em>Please note the number of the order may differ.</em>

n_1  = 18

n_2 = 9

Step-by-step explanation:

     We will write mathematical equations to represent the situation. Let n_1 be the first number and n_2 be the second.

-> The sum of two numbers is 27.

n_1 + n_2 = 27

-> One number is 2 times as large as the other.

n_1  = 2 * n_2

     Now, we will solve it as a system of equations.

n_1 + n_2 = 27

(2 * n_2) + n_2 = 27

3 * n_2 = 27

n_2 = 9

-----------

n_1  = 2 * n_2

n_1  = 2 * (9)

n_1  = 18

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3 0
3 years ago
Find the surface area and volume of a cylinder with a diameter equal
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Answer:

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Step-by-step explanation:

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8 0
2 years ago
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To find the mean of a data set, add all the numbers, then divide by the number of numbers there are. 

10 + 1 + 10 + 15 + 1 + 7 + 10 + 1 + 6 + 13 = 74
74/10 = 7.4

The mean is 7.4

Now for the median.

To find the median put all the numbers in order, then find the middle number.

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The number in between 7 and 10 is 8.5
The median is 8.5

And finally, the mode.

To find the mode, find the number that appears the most. 

1, 1, 1, 6, 7, 10, 10, 10, 13, 15

In this case, there are two modes. 1, and 10.

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
8 0
3 years ago
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Answer: a or D

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3 years ago
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