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Otrada [13]
4 years ago
6

Shilpa's gym membership includes a one-time fee of $20. She then pays a discounted fee of $5 for each visit. The function that s

hows her average cost after x visits
Mathematics
2 answers:
jeka944 years ago
8 0

Answer:

\frac{20+5x}{x}

Step-by-step explanation:

Fixed cost = $20

She then pays a discounted fee of $5 for each visit.

Fees for x visits = 5x

So, Total fees after x visits = 20+5x

Average = \frac{\text{Total fees}}{\text{No. of weeks}}

Average = \frac{20+5x}{x}

Hence The function that shows her average cost after x visits is \frac{20+5x}{x}

statuscvo [17]4 years ago
6 0
\text {average cost after x visit = }  \dfrac{20 + 5x}{x}
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Step-by-step explanation:

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5 0
3 years ago
The average score of golfers competing in the ACME INC Tournament is 71.5. In golf, the goal is to get the lowest score. A golfe
Anettt [7]

Answer:

He needs to score below 68.88 in order to advance to the next round

Step-by-step explanation:

Z-score

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 = 71.5, \sigma = 3.12

He needs to score below what value in order to advance to the next round?

Below the 20th percentile, so below the value of X when Z has a pvalue of 0.20. So it is X when Z = -0.84

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

-0.84 = \frac{X - 71.5}{3.12}

X - 71.5 = -0.84*3.12

X = 68.88

He needs to score below 68.88 in order to advance to the next round

5 0
3 years ago
I need help with this question ​
jarptica [38.1K]

Answer:

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Step-by-step explanation:

5 0
3 years ago
What is the solution of the following inequality?<br> 3x^2−8x&gt;11
kolezko [41]
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3x² - 8x - 11 > 11 - 11
3x² - 8x - 11 > 0
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x > <u>8 +/- √(64 + 132)</u>
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x > <u>8 +/- 14</u>
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x > <u>20</u>             x > <u>-6</u>
       6                     6
x > 3.33          x > -1
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3 0
3 years ago
Please help asap!!! !!!!....!!
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