10 1/2 pages are written in 4 hours. How many pages per hour?

Mathematics

2 answers:

aalyn [17]2 years ago

8 0

10.5/2= 2.625= 2 5/8

2 5/8 pages are written per hour.

Hope this helps!

yulyashka [42]2 years ago

7 0

2.6 pages are written per hour

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If you know the rest of the answers pls help me

netineya [11]

Answer:

.45 times 6= 2.7

29 times 8 =232

.62 times 19 = 11.78

8.7 times 12=104.4

11.9 times 4 = 47.6

Step-by-step explanation:

3 0

1 year ago

A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12% of scores B: Scores below t

RUDIKE [14]

Answer:

The minimum score required for an A grade is 88.

Step-by-step explanation:

Problems of normally distributed samples are 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.

In this problem, we have that:

$\mu = 77.8, \sigma = 8.5$