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hjlf
2 years ago
14

How do i find the value of x and y ?

Mathematics
1 answer:
alex41 [277]2 years ago
5 0

Answer:

you have to divide

Step-by-step explanation:

I think you have to divide

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Jamie went to the his 6 friends. For each friend, he spent $4.75 for a sandwich, $1.25 for a cold beverage, and $.56 for a piece
masha68 [24]

Answer:

Jamie spent $39.36 in total.

Step-by-step explanation:

First, add the money spent for the sandwich, beverage, and fruit together.

4.75 + 1.25 + .56 = 6.56

Then, multiply the amount spent for one friend by six to find the total.

6.56 x 6 =39.36

I hope this helped you!

8 0
3 years ago
What’s the square root of 4
Alina [70]

Answer:

2

Step-by-step explanation:

To find square root, you have to find out what number times itself will create the square root value:

\sqrt{4} means that there has to be a number that times itself to get 4.

2*2=4

Meaning that 2 is the perfect choice for this question.

\sqrt{4} = 2

3 0
2 years ago
Read 2 more answers
I need help on this question
raketka [301]
You got the right answers!
Horizontal and vertical

Congrats
7 0
3 years ago
Suppose a production facility purchases a particular component part in large lots from a supplier. The production manager wants
musickatia [10]

Answer:

We need a sample size of at least 1161.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error for the interval is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

For this problem, we have that:

\pi = 0.22

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

How large a sample should she take?

We need a sample size of at least n.

n is found when M = 0.02

So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.02 = 1.645\sqrt{\frac{0.22*0.78}{n}}

0.02\sqrt{n} = 1.645\sqrt{0.22*0.78}

\sqrt{n} = \frac{1.645\sqrt{0.22*0.78}}{0.02}

(\sqrt{n})^{2} = (\frac{1.645\sqrt{0.22*0.78}}{0.02})^{2}

n = 1160.88

Rounding up

We need a sample size of at least 1161.

7 0
3 years ago
Solve by using subitution
Bas_tet [7]

Y=2x+1
2x-y=2
2x-(2x+1)=2
-1=2
-1+1=2+1
0=3


No solution
4 0
2 years ago
Read 2 more answers
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