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stich3 [128]
3 years ago
8

Martha needs 28 strawberries for every 4 smoothies she makes

Mathematics
2 answers:
melisa1 [442]3 years ago
7 0

Answer:

21 strawberries and 10 smoothies

Step-by-step explanation:

when you divide 28 by 4 you get 7 which is how many strawberries you need for one smoothie. you can now use 7 as a scale factor for the rest of the problem.

Alexandra [31]3 years ago
4 0

Answer:

he the first answer in the strawberry column is 21 and the question in the smoothie box is 10

Step-by-step explanation:

First you divide 28 by 4 (7). You times 7 with 3 (21) thats the first answer

The second you divide 70 with 7 (10 easy math lol) and thats your other answer

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P(V|A) is not 0.95. It is opposite:

P(A|V)=0.95

From the text we can also conclude, that

P(A|∼V)=0.1

P(B|V)=0.9

P(B|∼V)=0.05

P(V)=0.01

P(∼V)=0.99

What you need to calculate and compare is P(V|A) and P(V|B)

P(V∩A)=P(A)⋅P(V|A)⇒P(V|A)=P(V∩A)P(A)

P(V∩A) means, that Joe has a virus and it is detected, so

P(V∩A)=P(V)⋅P(A|V)=0.01⋅0.95=0.0095

P(A) is sum of two options: "Joe has virus and it is detected" and "Joe has no virus, but it was mistakenly detected", therefore:

P(A)=P(V)⋅P(A|V)+P(∼V)⋅P(A|∼V)=0.01⋅0.95+0.99⋅0.1=0.1085

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3 years ago
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Mekhanik [1.2K]

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Answer:

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Step-by-step explanation:

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