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Ad libitum [116K]
3 years ago
7

Yvonne started running 8 minutes after Cassie started. Cassie was running at a rate of 500 feet per minute. Yvonne was running a

t a rate of 600 feet per minute. Which equation could you solve to find how long it will take Yvonne to catch up to Cassie?​
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
3 0

Answer:

500t + 4,000 = 600t

Step-by-step explanation:

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Answer:

n=42 adult men

Step-by-step explanation:

-The minimum sample size to get a desired margin of error, E is calculated using the formula:

n\geq( \frac{z\sigma}{E})^2

-Given that \sigma=7.5, \ \ E=3\ , \ z_{0.005}=2.58, we can substitute to solve for n in the above formula:

n\geq (\frac{z\sigma}{E})^2\\\\\therefore n=(\frac{z_{\alpha/2}\sigma}{E})^2\\\\=(\frac{2.58\times7.5}{3})^2\\\\=41.6025\approx42

Hence, the desired minimum sample size, n is 42 adult men.

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