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2 years ago

On one trip 82 people and 49 cars rode the ferry. About how much money did the ferry service collect for the one trip?

1 answer:

7 0

Need to know how much per person and how much per car..
to answer your question you will do it like this:
82×a(amount per person)=b
49×c (amount per car)=d
b+d= total amount for one trip

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Sixteen scholars have volunteered to stay after school to help set up for the school musical. The musical director plans to orde

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The director would have to pay $40.47.

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8+8=16

If all of them eat another .5 slice, adding up the halves would equal 8

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In total, the director would have to buy three pizzas which equals up to our total of $40.47

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2 years ago

A spreadsheet used by accountants for Company XYZ contains 25 fields in which data is manually entered. If historical data revea

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Answer:

See explaination for the details of the answer

Step-by-step explanation:

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2 years ago

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ludmilkaskok [199]

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1 year ago

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frozen [14]

Answer:

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Step-by-step explanation:

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2 years ago

A set of data items is normally distributed with a mean of 400 and a standard deviation of 60. Find the data item in this distri

Softa [21]

Answer:

The data item is $X = 580$

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 400 and a standard deviation of 60.

This means that $\mu = 400, \sigma = 60$

z=3

We have to find X when Z = 3. So

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

$3 = \frac{X - 400}{60}$

$X - 400 = 3*60$

$X = 580$

The data item is $X = 580$

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2 years ago