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xeze [42]
3 years ago
7

How do you work out the unit rates?

Mathematics
2 answers:
ElenaW [278]3 years ago
6 0
You work out unit rates by making the denominator 1
Nuetrik [128]3 years ago
3 0
Make the denominator 1
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What value of w makes this equation true?<br> 5w<br> 30
Arturiano [62]
5w=30
5w/5=30/5
w=6

Therefore w is equal to 6
3 0
2 years ago
What is 52 divided by 8 with a remainder
lesya692 [45]
Fiftty two dived by eight is six point five not for sure .
8 0
3 years ago
The population of scores on a nationally standardized test forms a normal distribution with μ = 300 and σ = 50. If you take a ra
madreJ [45]

Answer:

P(\bar X

And using a calculator, excel or the normal standard table we have that:

P(Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(300,50)  

Where \mu=300 and \sigma=50

Since the distribution for X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

We can find the individual probability like this:

P(\bar X

And using a calculator, excel or the normal standard table we have that:

P(Z

4 0
3 years ago
Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible.
Black_prince [1.1K]

Answer:

y = (-1/2)x + 9/2

Step-by-step explanation:

the equation of a straight line can be written as;

y = mx + c ......1

Where;

m = slope

c = intercept

For two lines to be perpendicular their slope must be opposite reciprocal of each other.

m1 × m2 = -1 .....2

Given;

The equation Contains (3, 3); and perpendicular to the line y = 2x - 1

Slope of the given equation m1 = 2

Slope of the line m2; substituting m1 to equation 2.

2 × m2 = -1

m2 = -1/2

So,

y = (-1/2)x + c

To solve for c, let's substitute the given point on the line; (3,3).

3 = (-1/2)(3) + c

3 = -3/2 + c

c = 3 + 3/2

c = 9/2

Therefore, the equation of the line that has the given properties is;

y = (-1/2)x + 9/2

8 0
3 years ago
The cost of renting a canoe is $5.25, plus $0.50 per hour for the time that the canoe is out. Which equation could be used to fi
ki77a [65]

Answer:

C = 5.25 + 0.50H

Step-by-step explanation:

gah, I'm never sure how to explain my work in these sorts of problems. hopefully I was able to help anyways!

6 0
3 years ago
Read 2 more answers
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