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Elanso [62]
3 years ago
15

Inez Walks 1.85 mi in 45 minutes , how many miles can she walk in 1 hour?

Mathematics
1 answer:
never [62]3 years ago
7 0

Answer:

She can walk 2.46 repeating miles in 1 hour

Step-by-step explanation:

We can write a proportion to solve this problem.  Write the number of miles on top and the time  in minutes on the bottom.  We know 1 hour is 60 minutes.

1.85 miles                   x miles

-------------------  = ----------------------

45 miles                  60 minutes

 

Using cross products

1.85 * 60 = 45x

Divide each side by 45

1.85*60/45 = 45x/45

2.466666666 =x

She can walk 2.46 repeating miles in 1 hour

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An average computer mouse inspector can inspect 50 mice per hour. The 48 computer mice inspectors at a particular factory can on
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Let \mu be the population mean .

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H_0:\mu=50\\\\ H_a: \mu

Since the alternative hypothesis is left-tailed and population standard deviation is not given , so we need to perform a left-tailed t-test.

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s= 10

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Using t-distribution , we have

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