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LenaWriter [7]
2 years ago
11

music store bought a CD set at a cost of ​$10. When the store sold the CD​ set, the percent markup was 10​%. Find the selling pr

ice
Mathematics
1 answer:
dolphi86 [110]2 years ago
7 0

Answer:

11

Step-by-step explanation:

10 percent of 10 is 1 so add that to 10 and you have your price

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2/3 divided by 1/2 please I really need this!!
olganol [36]

Answer:

1 1/3

Step-by-step explanation:

2/3 x 2/1 = 4/3 = 1 1/3

5 0
2 years ago
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Giselle pays $190 in advance on her account at the athletic club. Each time she uses the club, $10 is deducted from the account.
Archy [21]
Y= -10x + 190

In using a linear function, follow the pattern y=mx + b.
In this scenario, the m (which represents slope) is -10 since $10 is taken away every time. The b(which represents y-int) is 190 because you start with 190 (x=0)
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3 years ago
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A person must score in the upper 8% of the population on an IQ test to qualify for membership in MENSA, the international high-I
Cloud [144]

Answer:

A person must get an IQ score of at least 138.885 to qualify.

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 = 115, \sigma = 17

(a). [7pts] What IQ score must a person get to qualify

Top 8%, so at least the 100-8 = 92th percentile.

Scores of X and higher, in which X is found when Z has a pvalue of 0.92. So X when Z = 1.405.

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

1.405 = \frac{X - 115}{17}

X - 115 = 17*1.405

X = 138.885

A person must get an IQ score of at least 138.885 to qualify.

5 0
3 years ago
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How many possible circles of given radius can be drawn touching both axes and the line x = c?
DiKsa [7]
1 the answer is one
8 0
3 years ago
Kharon needs to write 3 book reports with b pages and 3 science reports with s pages during the school year. Write an algebraic
aalyn [17]

Answer:

3b+3s

Step-by-step explanation:

According to the statement, Kharon needs to write 3 book reports with b pages. This means that he has 3 books and each of them has b amount of pages which you can express as b+b+b that is equal to 3b. Also, he has 3 science reports with s pages which is 3s. In order to find the total number of pages, you have to add up 3b plus 3s. According to this, the algebraic expression for the total number of pages Kharon will need to write is: 3b+3s.

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2 years ago
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