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2 years ago

How do you write a real world scenario using equations

Mathematics

1 answer:

olga2289 [7]2 years ago

6 0

Answer:

You will need an unknown value at first. Let that value be X.

Step-by-step explanation:

So let's say that Sandra earns 5 dollars per hour and already has 30 dollars. Now lets use this form

y-mx+b(Easy way to write one)

y=5x+30

X Is Number of hours while y is the money gained

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If line tw is parallel to line SX , m ? 1 = 59 , and m ? 6 = 72?, what is m ? 8?

zubka84 [21]

I'm guessing 1 and 4, but I'm not sure.

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3 years ago

Suppose the population standard deviation is σ = 5 , an SRS of n = 100 is obtained, and the confidence level is chosen to be 98%

beks73 [17]

Answer:

1.165.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.98}{2} = 0.01$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.01 = 0.99$ , so $z = 2.33$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

$\sigma = 5, n = 100$ . So

$M = z*\frac{\sigma}{\sqrt{n}}$

$M = 2.33*\frac{5}{\sqrt{100}} = 1.165$

So the correct answer is:

1.165.

6 0

3 years ago

A. –30 B .–19 C. –22 D. –10

elena-s [515]

Answer:

-30

Step-by-step explanation:

substitute the values and get -30

5 0

2 years ago

Read 2 more answers

Which planet is an inner planet, and which one is an outer planet? Explain your answer.

Paraphin [41]

Answer:

Planet A is an outer planet, and planet B is an inner planet. Inner planets rotate slowly, so they take more time to complete a rotation. Outer planets rotate faster, so they take less time to complete a rotation.

your welcome !!!

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2 years ago

Angie bought 312 pounds of apples to make a pie. There are 16 ounces in one pound. How many ounces of apples did she buy?

vfiekz [6]

4,992 ounces
multiply 312 by 16

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2 years ago

How do you write a real world scenario using equations​

How do you write a real world scenario using equations