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IceJOKER [234]
2 years ago
14

Rosa and her friends are eating out for dinner. the bill was $30.12. they want to leave a 19% tip.

Mathematics
1 answer:
FromTheMoon [43]2 years ago
7 0

Answer:

35.84

Step-by-step explanation:

You would take 19% of 30.12$ by doing 30.12x0.19 to get 5.72.

you then add 5.72 to 30.12 to get your total of 35.84$

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Answer:

Step-by-step explanation:

If the regular price of a T-shirt is 10 USD and the store sells off its wares at 80% of its regular price, then the price at which the store would still the aforementioned T-shirt would be 80% of its 10 USD price.

80% of $10 =

0.8 * 10 = $8

This means that the price at which the T-shirt will go for, due to the ongoing sales will be $8.

Also, being asked to find the 10% and 20% of $10 is just as simple

10% of $10 =

0.1 * 10 = $1

20% of $10 =

0.2 * 10 = $2

Therefore, the 10% and 20% of $10 is $1 and $2 respectively.

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3 years ago
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5 0
2 years ago
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posledela

Answer:

We can find the critical value t_{\alpha/2}

And for this case if the confidence increase the critical value increase so then this statement is True

Step-by-step explanation:

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\alpha=1 -c

And with the degrees of freedom given by:

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We can find the critical value t_{\alpha/2}

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Answer:

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Step-by-step explanation:

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