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Darya [45]
3 years ago
11

How do i divide 4/9 divided by 15/8

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
4 0
Multiply by recriprocAl

4/9 times 8/15

4*8 = 32
9*15 =135

Answer: 32/135
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PLEASE HELP PLEASEEEE
Maurinko [17]

Answer:

For A = tan = 20/14

3 0
3 years ago
Cars arrive at the Wendy's drive-through at a rate of 1 car every 5 minutes between the hours of 11:00 PM and 1:00 AM. on Saturd
mestny [16]

Answer:

1) P(X = 8) = 0.1033

P(X = 9) = 0.0688

2) Expected number of 200 restaurants in which exactly 8 customers use the drive-through: 20.66

Expected number of 200 restaurants in which exactly 9 customers use the drive-through: 13.76

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

Question 1. Use the Poisson distribution to calculate the probability that exactly 8 cars will use the drive-through between 12:00 midnight and 12:30 AM on a Saturday night at Wendy's. Do the same for exactly 9 cars.

Cars arrive at the Wendy's drive-through at a rate of 1 car every 5 minutes between the hours of 11:00 PM and 1:00 AM. on Saturday nights. This means that during 30 minutes, 6 cars expected to arrive. So \mu = 6.

P(X = 8)

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 8) = \frac{e^{-6}*(6)^{8}}{(8)!} = 0.1033

P(X = 9)

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 9) = \frac{e^{-6}*(6)^{9}}{(9)!} = 0.0688

Question 2. At how many of the 200 restaurants in the survey would you expect exactly 8 customers to use the drive-through? exactly 9 customers?

There is a 10.33 probability that 8 customers would use the drive through for each restaurant.

So of 200, the expected number is

E(X) = 200*0.1033 = 20.66

There is a 6.88 probability that 9 customers would use the drive through for each restaurant.

So of 200, the expected number is

E(X) = 200*0.0688 = 13.76

8 0
3 years ago
Beth sold half of her comic books and then bought nine more. She now had 28. With how many did sh begin?
Vladimir79 [104]

Answer:

<h2><em><u>38</u></em></h2>

Step-by-step explanation:

She began with 38 books.

28 - 9 = 19

19(2) = 38

Hope this helps!

3 0
3 years ago
Read 2 more answers
How to do multiplicities
victus00 [196]
I think, you just find a number that could be divided by or divided for.
4 0
3 years ago
Jocelyn Clinton works for a company that uses a percentage method to compute income tax withheld. Jocelyn is single and claims o
Veronika [31]
Jocelyn makes more than $195 but not over $645. The amount she has to pay is 15% of the excess of 196. Find this first via subtraction.

421 - 195 = $226 over 

Take 15% of this

226 x .15 = $33.9

The tax also includes a $14.4 addition to this 15%.

33.9 + 14.4 = $48.3 total income tax
6 0
3 years ago
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