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Vinil7 [7]
3 years ago
11

Trey reads 10 pages in 25 minutes. At the rate, how many pages will he read in 45 minutes?

Mathematics
1 answer:
neonofarm [45]3 years ago
3 0
Answer: 18 pages

======================================

Explanation:

Trey reads 10 pages in 25 minutes, which means we have the ratio 
10 pages: 25 minutes

Divide each part of the ratio by 25
10 pages: 25 minutes
10/25 pages: 25/25 minutes
0.4 pages: 1 minute

So Trey's unit rate is 0.4 pages per minute. In one minute, Trey reads 0.4 of a page

Now multiply both sides of the last ratio by 45
0.4 pages: 1 minute
45*0.4 pages: 45*1 minute
18 pages: 45 minutes

Which is why the answer is 18 pages
It takes Trey 45 minutes to read 18 pages
Or in other words, Trey reads 18 pages in 45 minutes.
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Engineers want to design seats in commercial aircraft so that they are wide enough to fit 95​%of all males.​ (Accommodating 100%
Anarel [89]

Answer:

Upper P95 = 16.21in

Step-by-step explanation:

When the distribution is normal, we use 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.

In this question, we have that:

\mu = 14.4, \sigma = 1.1

Upper P 95

This is the 95th percentile, which is X when Z has a pvalue of 0.95. So X when Z = 1.645.

Then

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

1.645 = \frac{X - 14.4}{1.1}

X - 14.4 = 1.1*1.645

X = 16.21

Upper P95 = 16.21in

3 0
3 years ago
Help me fast please
solong [7]

Answer:

81.57 cm

Step-by-step explanation:

divide the actual length by 100 =27.19

times 27.19 by 3= 81.57 cm hope this helps, have a nice day :)

3 0
2 years ago
You are single and claim 1 allowance. You presently earn $520.00 per week. Starting next week you will receive a 5% increase in
expeople1 [14]

Y=C+I+G+(X-M)

y=national income

c=consumer spending

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7 0
3 years ago
Ivan sold 31 boxes of oranges on Friday and 29 boxes on Saturday during a citrus sale. There were 10 oranges in each box. How ma
ycow [4]

Answer:

600

Step-by-step explanation:

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7 0
3 years ago
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Answer:

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Step-by-step explanation:

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6 0
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Read 2 more answers
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