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3 years ago

(PLEASE HELP!!!!)Mario has money in savings. He also has a job with hourly pay. After

Mathematics

1 answer:

Olin [163]3 years ago

5 0

Answer:

X = savings, p= pay per hour

X+4p = 86 - - - - (1)

X+6p=104 - - - - - (2)

Re arrange equation (1)

X=86-4p-----(3)

Substitute (3) in (2)

86-4p +6p=104

86+2p=104. (subtract 86 from both side)

2p = 18. (divide by 2 from both side)

Then p =$9

By substitute in equation (1)

X = $50

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The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 4.5 per week. Find the probabili

Mariana [72]

Answer:

a) 0.01111

b) 0.4679

c) 0.33747

Step-by-step explanation:

We are given the following in the question:

The number of accidents per week can be treated as a Poisson distribution.

Mean number of accidents per week = 4.5

$\lambda= 4.5$

Formula:

$P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}$

a) No accidents occur in one week.

$P(x =0)\\\\= \displaystyle\frac{4.5^0 e^{-4.5}}{0!}= 0.01111$

b) 5 or more accidents occur in a week.

$P( x \geq 5) = 1-\displaystyle \sum P(x$

c) One accident occurs today.

The mean number of accidents per day is given by

$\lambda = \dfrac{4.5}{7} = 0.64$

$P(x =1)\\\\= \displaystyle\frac{0.64^1 e^{-0.64}}{1!}= 0.33747$

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3 years ago

What is the measure of b

Pachacha [2.7K]

Answer:

90-66=24

Step-by-step explanation:

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2 years ago

Kate got 2 out of the 3 questions correct on her pop quiz what is her grade

IceJOKER [234]

Answer:

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Step-by-step explanation:

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3 years ago

Which two numbers go into the blanks so they add to be the bottom number but also multiply to be the top?

ss7ja [257]

Answer:

8 and 6

Step-by-step explanation:

8 * 6 = 48

8 + 6 = 14

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3 years ago

Read 2 more answers

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kaheart [24]

Answer:

The Answer is -34 (Negative 34)

Letter Choice A

Step-by-step explanation:

Hope it helped!!

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2 years ago