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garri49 [273]
2 years ago
12

Suppose that y varies inversely with x. Write an equation for the inverse variation. y = 2 when x = 5

Mathematics
1 answer:
Colt1911 [192]2 years ago
7 0
Inverse means 1 over the other so y=1/x, we are given that y=2 when x=5 so our equation turns into 2=/=1/5, these things do not equal so we have to add a coefficient to the right to make this statement true. I would select 10, so that it becomes y=10/x, when the values are plugged in it becomes 2=10/5 or 2=2. 
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Step-by-step explanation:

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frozen [14]

Answer:

P(cream and sugar) = 0.4

Step-by-step explanation:

* Lets study the meaning of or , and on probability

- The use of the word or means that you are calculating the probability

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* The addition rules are:

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# P(A or B) = P(A) + P(B) - P(A and B) ⇒ non-mutually exclusive (if they

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* Lets solve the question

∵ P(cream) = 0.5

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∵ P(cream or sugar) = 0.7

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∴ P(cream or sugar) = P(cream) + P(sugar) - P(cream and sugar)

- Lets substitute the values of P(cream) , P(sugar) , P(cream or sugar)

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∴ 0.7 - 1.1 = - P(cream and sugar)

∴ - 0.4 = - P(cream and sugar) ⇒ multiply both sides by -1

∴ 0.4 = P(cream and sugar)

* P(cream and sugar) = 0.4

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