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sladkih [1.3K]
2 years ago
15

You are choosing between two health club. club a offers membership for a fee of $20 plus a monthly fee of $25. club b offers mem

bership for a fee of $35 plus a monthly fee of $18. after how many months will the total cost of each health club be the same!
Mathematics
1 answer:
____ [38]2 years ago
8 0
20+25x=35+18x
x=1 month
x=15/7
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Answer:

Option c.

Step-by-step explanation:

Using the normal curve to approximate a sampling distribution:

For a sample size n and a proportion n, the normal curve can be used if:

np \geq 10 and n(1-p) \geq 10

Option a:

np = 35*0.8 = 28 > 10

n(1-p) = 35*0.2 = 7 < 10

So option a cannot be used.

Option b:

np = 65*0.9 = 58.5 > 10

n(1-p) = 65*0.1 = 6.5 < 10

So option b cannot be used.

Option c:

np = 65*0.8 = 52 > 10

n(1-p) = 65*0.2 = 13 > 10

So option c can be used, and is the answer

Option d:

np = 35*0.9 = 31.5 > 10

n(1-p) = 35*0.1 = 3.5 < 10

So option d cannot be used.

The answer is given by option c.

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He spent 0.5 hours per day
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Dose Congruent Mean Having The Same Measure​
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What is the interquartile range of a data set? <br> what does the IRQ tell you about a data set?
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3 years ago
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