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WINSTONCH [101]
3 years ago
6

A mine produces 42.5 tons of coal per hour . how much coal will the mine produce in 9.5 hours?

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
7 0

Based on the information provided we are given that 42.5 tons of coal are produced per hour.

Using this information, we need to find the amount of coal produced in 9.5 hours, therefore we would multiply to determine how much coal is produced.

42.5 * 9.5 = 403.75

The answer is 403.75 tons of coal.

blagie [28]3 years ago
5 0

Answer:

403.75 tons of coal.

Step-by-step explanation:

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3 years ago
Sophia buys an apple that weighs 0.45 pound, a grapefruit that weighs pound, a navel orange that weighs pound, and a pear that w
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Answer:

The order of fruit from least to greatest weight is -

Apple , pear, navel orange, grapefruit

Step-by-step explanation:

P.S - The exact question is -

Given - Sophia buys an apple that weighs 0.45 pound, a grapefruit that weighs \frac{3}{4} pound, a navel orange that weighs \frac{5}{8} pound, and a pear that weighs 0.5 pound.

To find - What is the order of the fruit from least weight to the greatest weight ?

Proof -

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2 years ago
What is the distance between the two endpoints in the graph below? if necessary,round your answer to two decimal places
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2. To estimate the mean age for a population of 4000 employees, a simple random sample of 40 employees is selected. a. Would you
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Step-by-step explanation:

a.

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b.

Population standard deviation is σ = 8.2

<u>So, the standard error of x’ using the finite population correction factor is give by</u>

σ(x’) = √[(N - n)/(N - 1)] x (sigma/√n)

σ(x’) = √[(4000 - 40)/(4000 - 1)] x (8.2/√40)

σ(x’) = 1.29

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σ(x’) = σ/√n

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c.

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P(μ– 2 < x’ < μ + 2)

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z = (μ – 2 – μ)/1.2965

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at x’ = μ  + 2, we have

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P(μ – 2 < x’ < μ + 2) = p(-1.54< z < 1.54)

P(μ – 2 < x’ < μ + 2) = p(z < 1.54) – p(z < -1.54)

P(μ – 2 < x’ < μ + 2) = 0.9382 – 0.0618

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Step-by-step explanation:

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