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Lelechka [254]
3 years ago
15

Rami has swimming lessons every 3 days and guitar lessons every 8 days. If he has both lessons on the first day if the month, in

his many days will Rami have both lessons on the same day again?
Mathematics
2 answers:
kirill115 [55]3 years ago
8 0

Answer:

3 and 8 do not have common factors so the next time these two lessons would be at the same time is 3*8.

3*8=24

24 days from now he will have both

Step-by-step explanation:


OleMash [197]3 years ago
3 0

Answer:

First you should multiply 8x3, since there are no common factors. Your awnser should be 24 since 8x3=24

Step-by-step explanation:

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The number of typing errors made by a typist has a Poisson distribution with an average of three errors per page. If more than t
damaskus [11]

Answer:

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

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 interval.

Poisson distribution with an average of three errors per page

This means that \mu = 3

What is the probability that a randomly selected page does not need to be retyped?

Probability of at most 3 errors, so:

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

In which

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

P(X = 0) = \frac{e^{-3}*3^{0}}{(0)!} = 0.0498

P(X = 1) = \frac{e^{-3}*3^{1}}{(1)!} = 0.1494

P(X = 2) = \frac{e^{-3}*3^{2}}{(2)!} = 0.2240

P(X = 3) = \frac{e^{-3}*3^{3}}{(3)!} = 0.2240

Then

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0498 + 0.1494 + 0.2240 + 0.2240 = 0.6472

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

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dem82 [27]

Answer:

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3 0
2 years ago
If p and q vary inversely and pp is 23 when q is 6, determine q when p is equal to 69.
Lina20 [59]

Answer:

Answer is q = 2

Step-by-step explanation:

First make the equation with a constant so p=k/q

then substitute q to 6 and p to 23.

Then you have 23=k/6 and to find k multiply both sides to get k=138

next substitute p as 69=138/q then multiply q on both sides to get 69xq=138 and then divide 69 to 138 go get q which is 2

Like if it helped!

4 0
1 year ago
Consider the relation y = −8|x + 3| − 9. what are the coordinates of the vertex? (−3, 9) (−3, −9) (3, −9) (3, 9)
german
By simple substitution on the left side and on the right side of the given equation, we have to
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7 0
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If you drive 164 miles in the morning and 219 miles in the afternoon what is the estimate total number of miles drove that day?
alex41 [277]

Answer:

380

Step-by-step explanation:

4 0
3 years ago
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