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Lana71 [14]
3 years ago
5

Bob’s car needs a new transmission, a repair that will cost $1,763.00. Bob does not have enough money in his savings account to

cover the cost of the repair. To make matters worse, Bob’s mechanic, who works out of his home, is unable to accept credit cards. Bob is hesitant to take out a cash advance on his credit card knowing that it will take him 12 months to pay of the balance and that a cash advance comes with a 30% interest rate. If Bob uses a cash advance to pay for the repairs, how much extra will he have to pay in interest?
Mathematics
2 answers:
kondor19780726 [428]3 years ago
7 0

Answer:

The answer is C.) $299.44


Inessa [10]3 years ago
5 0
171.87*12=2062.44
2062.44-1763=299.44
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Step-by-step explanation:

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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

Find the minimum score required for an A grade.

Top 12%, which is at least the 100-12 = 88th percentile, which is the value of X when Z has a pvalue of 0.88. So it is X when Z = 1.175.

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

1.175 = \frac{X - 77.8}{8.5}

X - 77.8 = 1.175*8.5

X = 87.8

Rounding to the nearest whole number

The minimum score required for an A grade is 88.

5 0
2 years ago
Read 2 more answers
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3 years ago
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Serggg [28]

Answer:

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Step-by-step explanation:

Given

6 - x = 4(5 + x) - 4 ← distribute and simplify right side

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x = - 2

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3 years ago
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