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Alina [70]
3 years ago
13

40 pages read in 20 minutes. what is the unit rate?

Mathematics
1 answer:
Alenkinab [10]3 years ago
8 0

Answer:

2 pages per minute.

Step-by-step explanation:

40 pages / 20 minutes

= 40 / 20 = 4 / 2 = 2

Therefore, you read 2 pages per minute.

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Plz help with math!!!
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These are all linear equations:<span>y = 2x + 1  
5x = 6 + 3y
<span>y/2 = 3 − x</span></span>
6 0
3 years ago
Where is the center of CD given C(-6, 12) and D (13, 20)?
Law Incorporation [45]
(3.5, 16)

Midpoint Formula is 
((x1+x2)/2, (y1+y2)/2)
3 0
3 years ago
I need help on this question
Alenkinab [10]

Answer:

B. 63 degrees

Step-by-step explanation:

Its the same angle as the one above it.

I hope this helps :)

Have a nice day!

8 0
2 years ago
Read 2 more answers
If the distribution is really (5.43,0.54)
defon

Answer:

0.7486 = 74.86% observations would be less than 5.79

Step-by-step explanation:

I suppose there was a small typing mistake, so i am going to use the distribution as N (5.43,0.54)

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

The general format of the normal distribution is:

N(mean, standard deviation)

Which means that:

\mu = 5.43, \sigma = 0.54

What proportion of observations would be less than 5.79?

This is the pvalue of Z when X = 5.79. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{5.79 - 5.43}{0.54}

Z = 0.67

Z = 0.67 has a pvalue of 0.7486

0.7486 = 74.86% observations would be less than 5.79

7 0
3 years ago
The difference between three times a number and seven is twenty. What is the number?
Mama L [17]

Answer:

9

Step-by-step explanation:

(9*3) = 27 which is 20 more than 7

6 0
3 years ago
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