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harkovskaia [24]
3 years ago
12

Kelly knows that her car is getting older and will probably need repairs soon. She saves $50 each week to be used for the repair

s when they are needed.
Is this a financially responsible decision or a financially irresponsible decision? Explain the financial benefits or costs of this decision.
Mathematics
1 answer:
aleksklad [387]3 years ago
5 0
This is a financially responsible choice because whenever she will need money for the repairs she will not need to go into debt to fix her car or have to deal with a broken car. however this does stop her from paying for some extra stuff that she might want such as a food that she is craving that day or a drink that costs a little more than the alternative.
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A​ bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard devia
WITCHER [35]

Answer:

Upper P60 = 212.8

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 = 200, \sigma = 50

Find Upper P 60​, the score which separates the lower​ 60% from the top​ 40%.

This is the value of X when Z has a pvalue of 0.6. So it is X when Z = 0.255.

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

0.255 = \frac{X - 200}{50}

X - 200 = 0.255*50

X = 212.8

Upper P60 = 212.8

8 0
4 years ago
What is the sum when two opposites are combined?
Dafna11 [192]
When two opposites are combined the sum is always Zero
3 0
3 years ago
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VladimirAG [237]

Answer:

$9.08

Step-by-step explanation:

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$44 - $34.92= $9.08

5 0
3 years ago
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How many 2 1/2 inch-long steel stakes can Curtis cut from a piece of steel that is 25 inches long?​
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7 0
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When graphing an inequality that uses < or >, a person would use a closed (filled-in) circle or an open (not filled-in) ci
ANTONII [103]

Answer:

Open

Step-by-step explanation:

Closed =  \geq or \leq

Open = > or <

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3 years ago
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