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3 years ago

Valerie earns $24 per hour. How much money does she earns in 7 hours?

2 answers:

Elena-2011 [213]3 years ago

6 0

Hello!

To find how much Valerie makes in 7 hours, you'll need to multiply 7 with 24. You'll need to do so because if Valerie makes $24 dollars an hour and works for 7 hours, you'll find how much she makes. Once you've done that, you'll have an answer of $168

So Valerie makes $168 for 7 hours

I hope this helps!

Vaselesa [24]3 years ago

4 0

Short answer~ $168
Valerie earns 168 dollars in 7 hours

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Step-by-step explanation:

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3 years ago

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2 years ago

Ship collisions in the Houston Ship Channel are rare. Suppose the number of collisions are Poisson distributed, with a mean of 1

alexandr1967 [171]

Answer:

$a) \simeq 0.3012$ $b) \simeq 0.0494$ c) $\simeq 0.2438$

Step-by-step explanation:

Rate of collision,

1.2 collisions every 4 months

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P(X =x) = $\frac{e^{-\lambda}\times {\lambda}^{x}}}{x!}
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= 0 otherwise --------------------------------------(1)

here, $\lambda = 0.3$ collision / month

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Putting X = 0 in (1) we get,

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P(X =1) = $\frac{e^{-0.3}\times {\0.3}^{1}}{1!}
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$\frac{1}{6}$ collision per month

Now, P(1 collision in 6 months period)

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= $\frac {P(X=0)\times 5 + P(X =1)\times 1}{6}$

= \frac {0.7408182207 \times 5 + 0.2222454662 \times 1}{6}[/tex]

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So,

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= $0.6543894283^{6}$

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