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ASHA 777 [7]
3 years ago
15

Maria charges $15 for every 2 hours that she babysits. How much would Maria charge for working for 4 hours

Mathematics
2 answers:
Vladimir79 [104]3 years ago
8 0

Answer:

$30

Step-by-step explanation:

Multiply 15 by 2 because 4 hours is twice as much as 2 hours.

d1i1m1o1n [39]3 years ago
3 0

Answer:

30

Explanation:

Hope it helps!

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Maria and her friend ride their bikes. They start at 12:47 and end at 2:29. How long did they ride their bikes for?
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4 years ago
Read 2 more answers
Assume that all (525)poker hands are equally likely. What is the probability that you will be dealt:
AlekseyPX

Answer:

There is 1.98% of probability of being dealt a flush in 5-card Poker

Step-by-step explanation:

To know the probability of a flush being dealt, we can calculate the number of cases when that happens and divide it by the total number of cases of poker hands that exist, naming A the event of a flush.

We will use combinations (nCr button on a calculator) to count the number of cases, because we don't care about the order (it is the same to be dealt a 2, 4, 6, 7 and 8 of hearts than the opposite order), being a flush the event when we take 5 cards out of 13 of the same suit, times 1 out of 4 possible suits and the total number of cases is taking 5 random cards out of 52.

P_{A} =\frac{Cases   Of Flush}{Hands} =\frac{\left(\begin{array}{ccc}13\\5\end{array}\right)*\left(\begin{array}{ccc}4\\1\end{array}\right)}{\left(\begin{array}{ccc}52\\5\end{array}\right)} =\frac{5148}{2598960}=0,00198\\

That means there is about a 2% of probability of being dealt a flush.

In other words, of every 16660 plays, 33 will be, on average, a flush

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