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brilliants [131]
3 years ago
12

Use the substitution method to solve the system of equations. Choose the

Mathematics
2 answers:
malfutka [58]3 years ago
7 0

Answer:

5,8

Step-by-step explanation:

<em>y</em><em>=</em><em>4</em><em>x</em><em>-</em><em>2</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>(</em><em>i</em><em>)</em>

<em>y</em><em>=</em><em>x</em><em>+</em><em>1</em><em>3</em><em>-</em><em>-</em><em>-</em><em>-</em><em>(</em><em>i</em><em>i</em><em>)</em>

<em>E</em><em>q</em><em>u</em><em>a</em><em>t</em><em>i</em><em>n</em><em>g</em><em> </em><em>e</em><em>q</em><em>u</em><em>a</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>i</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>i</em><em>i</em><em> </em><em>w</em><em>e</em><em> </em><em>g</em><em>e</em><em>t</em><em>,</em>

4x - 2 = x + 13

4x - x = 13  + 2

3x = 15

x = 3

substitutin \: the \: value \: of \: x \: in \: equation \: (i)

y = 4x - 2

y = 4 \times 5 - 2

y = 20 - 2

y = 18

<em><u>M</u></em><em><u>a</u></em><em><u>r</u></em><em><u>k</u></em><em><u>s</u></em><em><u> </u></em><em><u>t</u></em><em><u>h</u></em><em><u>i</u></em><em><u>s</u></em><em><u> </u></em><em><u>a</u></em><em><u>s</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>b</u></em><em><u>r</u></em><em><u>a</u></em><em><u>i</u></em><em><u>n</u></em><em><u>e</u></em><em><u>s</u></em><em><u>t</u></em><em><u> </u></em><em><u>a</u></em><em><u>n</u></em><em><u>s</u></em><em><u>w</u></em><em><u>e</u></em><em><u>r</u></em><em><u> </u></em><em><u>o</u></em><em><u>k</u></em><em><u>.</u></em>

elixir [45]3 years ago
5 0

Answer:

c

Step-by-step explanation:

just plug each coordinates

5=x

18=y

if its tru for both then thats the answer

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Answer:

2.325

Step-by-step explanation:

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3 years ago
In a random sample of 200 engineers, 137 have a master's degree. what is the sample proportion, p-hat, of engineers who have mas
Blababa [14]

The sample proportion, p-hat, of engineers who have master's degrees is   68.5% out of 200 engineers.

p-hat proportion:

In this proportion,  "p" denotes the probability of a certain event occurring or a certain parameter being true for a certain population, but when a population is large, it may be impractical or impossible to measure it directly. So, we have used the proportion for that cases.

The general form for calculating p-hat proportion is,

\hat{p}=\frac{x}{y}

where

x  is the number of successes in the sample, and

y is the size of the sample.

Given,

In a random sample of 200 engineers, 137 have a master's degree.

Here we need to find the the sample proportion, p-hat, of engineers who have master's degrees

According to the question,

x = 137 (number of successes in the sample)

and y = 200 (size of the sample)

Now apply the value on the formula then we get,

\hat{p}=\frac{137}{200}

So, the value of p-hat is

\hat{p}=0.685

The results are usually reported as a percentage, which in this case would be

=> 0.685 x 100 = 68.5%

Therefore, the sample proportion, p-hat, of engineers who have master's degrees is 68.5% out of 200 engineers.

To know more about p-hat proportion here

brainly.com/question/1597320

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3 0
2 years ago
A jar contains 29 5/7 tablespoons of peanut butter. If one serving of peanut butter is 2 tablespoons, how many servings of peanu
katrin [286]
29 5/7 divided by 2 is 14 with a remainder of 1 5/7, remaider is 12/7, but since you know this can't be a vaild mixed number, multiply the denominator by 2, the number you are dividing by...

The answer is 14 12/14. Hope this helps!
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4 years ago
Read 2 more answers
Please help and thank you
tatyana61 [14]

Answer:

24

Step-by-step explanation:

4 0
3 years ago
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2/3 divided 1/2 quotient
Ivenika [448]

Answer: 4/3

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