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morpeh [17]
3 years ago
12

Cindy spends 2 hours doing English, Geometry and History homework. It takes her 35 minutes to do English homework and 55 minutes

to do Geometry homework. How much time does Cindy spend on History homework? Question 7 options: A.Cindy spends 30 minutes on History homework. B.Cindy spends 25 minutes on History homework. C.Cindy spends 65 minutes on History homework. D.Cindy spends 60 minutes on History homework.
Mathematics
1 answer:
Vikki [24]3 years ago
4 0
Ok! So first, 2 hours are 120 minutes and 55 + 35 = 90
 120 - 90 = 30
So the answer is A. Cindy spends 30 minutes on History
Hope it helps!

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Answer:

The correct answer is d.

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Suppose ARB Bank is reviewing its service charges and interest payment policies on current accounts. Suppose further that ARB ha
Advocard [28]

Answer:

5.94% of customers carries a balance of GH¢100 or lower.

82.64% of customers carries a balance of GH¢500 or lower.

0% of current account customers carries average daily balances exactly equal to GH¢500.

76.7% of customers maintains account balance between GH¢100 and GH¢500

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 = 350, \sigma = 160

What percentage of customers carries a balance of GH¢100 or lower?

This is the pvalue of Z when X = 100. So

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

Z = \frac{100 - 350}{160}

Z = -1.56

Z = -1.56 has a pvalue of 0.0594

5.94% of customers carries a balance of GH¢100 or lower.

What percentage of customers carries a balance of GH¢500 or lower?

This is the pvalue of Z when X = 500.

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

Z = \frac{500 - 350}{160}

Z = 0.94

Z = 0.94 has a pvalue of 0.8264

82.64% of customers carries a balance of GH¢500 or lower.

What percentage of current account customers carries average daily balances exactly equal to GH¢500?

In the normal distribution, the probability of finding a value exactly equal to X is 0. So

0% of current account customers carries average daily balances exactly equal to GH¢500.

What percentage of customers maintains account balance between GH¢100 and GH¢500?

This is the pvalue of Z when X = 500 subtracted by the pvalue of Z when X = 100.

From b), when X = 500, Z = 0.94 has a pvalue of 0.8264

From a), when X = 100, Z = -1.56 has a pvalue of 0.0594

0.8264 - 0.0594 = 0.767

76.7% of customers maintains account balance between GH¢100 and GH¢500

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Answer:

43%

Step-by-step explanation:

18/42 ≈ 43%

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Which fraction is equal to 0.03 repating?
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<h2><em><u>correct answer: 1/33</u></em></h2>
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Read 2 more answers
Original price:30 End price:45
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Profit=15

Because-

45-30=15

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