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2 years ago

Alyssa had 45$ to spend on 6 snacks.after buying them she had 12$ left how much did each snack cost?

Mathematics

2 answers:

Radda [10]2 years ago

3 0

Each snack cost $5.50

You start with $45, and afterwards end up with $12, so subtract 12 from 45 and you end up with 33. Then divide 33 by 6, since she bought 6 snacks, and you get $5.50.

Vilka [71]2 years ago

3 0

Divide $45 with $12, you get $3.75

To check your answer, $12 x $3.75 = $45

Each snack costs $3.75

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Step-by-step explanation:

We are given that a parallel system functions whenever at least one of its components works.

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Let A = Probability of component 4 working properly, P(A) = 0.4 .

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Now, the conditional probability that component 4 works given that the system is functioning is given by P(A/S) ;

P(A/S) = {Means P(component 4 working and system also working)

divided by P(system is functioning)}

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Since we know that P(system not working) means that none of the components is working in system and it is given with the probability of 0.6 and since there are total of 5 components so P(system working) = 1 - $0.6^{5}$ .

Hence, P(A/S) = $\frac{0.4}{1 - 0.6^{5} }$ = 0.434.

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Answer:

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