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lianna [129]
3 years ago
5

If x + 2y = 8, and x - y = 5, what is the value of x?

Mathematics
1 answer:
klemol [59]3 years ago
4 0

Answer:

x = 6

Step-by-step explanation:

<em>Let's solve y for x + 2y = 8.</em>

x + 2y = 8

2y = -x + 8

y = -\frac{1}{2}x + 4.

<em>Let's solve y for x - y = 5.</em>

x - y = 5

y = x - 5

<em>Since both equations have been solved for y, we can combine them together into one!</em>

x - 5 = -\frac{1}{2}x + 4

x + \frac{1}{2}x = 4 + 5

1.5x = 9

x = 6

Hope this helped! If not, please let me know!

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Answer:

-13

Step-by-step explanation:

-5x + 2 = 67

-5x = 65

5x = -65

x = -13

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3 years ago
What’s the equation to this table?Pls help.Use y=mx+b
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Answer:

y=5x

Step-by-step explanation

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6 0
2 years ago
Employees at Standard Storage are in the ratio of 2 women to 7 men. If there are 490 men employed,
PilotLPTM [1.2K]

Proportion women /men = 2/7 = x/490 7x= 2· 490 :7

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4 0
3 years ago
the number of defectives in 10 different samples of 50 observations each is the following: 5, 1, 1, 2, 3, 3, 1, 4, 2, 3. what is
Law Incorporation [45]

The estimate of the population proportion of defectives is 0.05.

Given that,

There are 10 different samples of 50 observations, that is, total of 500 observations.

To find : The estimate of the population proportion of defectives

And total number of defectives from 500 observations is (5+1+1+2+3+3+1+4+2+3) = 25

Thus, the point estimate for the population proportion defectives will be,

=25/500=0.05

or just obtain the individual proportion of each sample and then take their average to obtain the same result.

Thus, the point estimate for the population proportion defectives will be 0.05

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6 0
1 year ago
Please help me with this please 20 points
melisa1 [442]

Answer:

If you wan to go on the two rides with the shortest wait times (Dr. Zoom & Dueling Dragons), it should take 15  1/6 minutes.

Step-by-step explanation:

9   1/3   -->     9   2/6

9  2/6+5  5/6=15   1/6

4 0
3 years ago
Read 2 more answers
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