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Marianna [84]
3 years ago
11

A generator runs for 2 1/2 hand uses 4 3/8 gals of fuel. How many gallons of fuel did the generator use each hour?

Mathematics
1 answer:
krok68 [10]3 years ago
5 0

divide gallons used by time

4 3/8 = 35/8

2 1/2 = 5/2

35/8 / 5/2 = 35/8 * 2/5 = 70/40 = 7/4 (simplest form) =  1 3/4 gallons per hour

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Answer:

The answer to your question is: letter B

Step-by-step explanation:

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Forty percent of households say they would feel secure if they had $50,000 in savings. you randomly select 8 households and ask
Kay [80]

Answer:

Let X be the event of feeling secure after saving $50,000,

Given,

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Since, the binomial distribution formula,

P(x=r)=^nC_r p^r q^{n-r}

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=0.12386304

(b) the probability of the number that say they would feel secure is more than five

P(X>5) = P(X=6)+ P(X=7) + P(X=8)

=^8C_6 (0.4)^6 (0.6)^{8-6}+^8C_7 (0.4)^7 (0.6)^{8-7}+^8C_8 (0.4)^8 (0.6)^{8-8}

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(c) the probability of the number that say they would feel secure is at most five

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=0.95019264

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