3 years ago

What is 68.797 rounded to the nearest hundredth?

Mathematics

1 answer:

Korvikt [17]3 years ago

8 0

68.80 because 7 is greater than 5

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Please answer...................................

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for the first one- 1/8 0.25= decimal and percent=12.5%

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The owner of a small pet supply store wants to open a second store in another city, but he only wants to do so if more than one-

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Answer:

The answer is "The null hypothesis was rejected".

Step-by-step explanation:

Following are the right-tailed test:

Calculating the null and alternative hypothesis:

$H_0 : p = 0.3333\\\\H_a : p > 0.3333\\\\n = 150\\\\x = 64\\\\\hat{p} = \frac{x}{n} = \frac{64}{150} = 0.4267\\\\P_0 = 0.3333\\\\1 - P_0 = 1 - 0.3333 = 0.6667\\\\$

$z = \frac{\hat{p} - P_0}{[\sqrt{\frac{P_0 \times (1 - P_0 )}{n}}]}$

$= \frac{0.4267 - 0.3333}{[\sqrt{\frac{(0.3333 \times 0.6667)}{150}}]}\\\\= 2.426$

Calculating the right-tailed test:

$P(z > 2.426) = 1 - P(z < 2.426) = 1 - 0.9924 = 0.0076\\\\P-value = 0.0076\\\\\alpha = 0.05\\\\P-value < \alpha$

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This example shows that more than a third of the families own pets in this town.

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3 years ago

The cost of movie tickets for a group of friends is $24. They buy 3 snacks. The cost of each snack us the same. The group spends

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Answer:

Answer is 6.5 dollars.

Step-by-step explanation:

Cost of movie tickets and snacks in total = 43.50

Cost of tickets = $24

Cost of Snacks = 43.50-24 =19.5$

number of snacks = 3

Cost of one snack = 19.5 ÷ 3 = 6.5$

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3 years ago