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Airida [17]
3 years ago
5

What is 2 5/8 divided by 3/4

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
4 0
2 5/8 divided by 3/4 equals 3 1/2
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The head of the Westlane Cultural Center wants to get a sense of how quickly pledges from donors arrive at the center. It takes
Rzqust [24]

Answer:

95.64% probability that pledges are received within 40 days

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 = 28, \sigma = 7

What is the probability that pledges are received within 40 days

This is the pvalue of Z when X = 40. So

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

Z = \frac{40 - 28}{7}

Z = 1.71

Z = 1.71 has a pvalue of 0.9564

95.64% probability that pledges are received within 40 days

7 0
3 years ago
What is the answer to 6 3/8 -3/4- 1/2 =
zysi [14]

Answer: 5 1/8

Step-by-step explanation:

1. 6 3/8=51/8

2. 3/4=6/8; 1/2=4/8

3. 51/8-6/8-4/8=41/8

4. 41/8=5 1/8

3 0
3 years ago
What is the cube root of 8x3y6?<br> A) 8xy6 <br> B) 8xy2 <br> C) 2xy6 <br> D) 2xy2
Vsevolod [243]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
All positive integers $t$ such that $1.2t \leq 9.6$?
serious [3.7K]
Haha me don’t know sorry okay
7 0
2 years ago
Explain how to write 50,000 using exponents. Answer can only be one number but the answer can have as much exponents as wanted
Oksana_A [137]
The examples of 50,000 written as an exponent are as follows (but not limited to):

500 * 10^2
50 * 10^3
5 * 10^4
0,5 * 10^5

Doublecheck (optional):

500 * 10^2 = 500 * 100 = 50,000
50 * 10^3 = 50 * 1000 = 50,000
5 * 10^4 = 5 * 10000 = 50,000
0,5 * 10^5 = 0,5 * 100000 = 50,000
5 0
3 years ago
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