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3 years ago

11

10. For a birthday party, Ryan is making punch

1 answer:

gavmur [86]3 years ago

5 0

Answer

He'll need to buy 24 cups of fruit juice.

Step-by-step explanation:

the ratio is 2:3

16/2=8 cups now we multiply 3 by 8

3x8=24 cups

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2 years ago

Read 2 more answers

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kifflom [539]

The answer is C. 5-8 is -3. 5-5 is 0. When you multiply -3 by 0 the outcome is 0!

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2 years ago

What is the range of the given function? {(–2, 0), (–4, –3), (2, –9), (0, 5), (–5, 7)}

Natali5045456 [20]

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2 years ago

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The national average sat score (for verbal and math) is 1028. if we assume a normal distribution with standard deviation 92, wha

elena55 [62]

Let X be the national sat score. X follows normal distribution with mean μ =1028, standard deviation σ = 92

The 90th percentile score is nothing but the x value for which area below x is 90%.

To find 90th percentile we will find find z score such that probability below z is 0.9

P(Z <z) = 0.9

Using excel function to find z score corresponding to probability 0.9 is

z = NORM.S.INV(0.9) = 1.28

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Now convert z score into x value using the formula

x = z *σ + μ

x = 1.28 * 92 + 1028

x = 1145.76

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The probability that randomly selected score exceeds 1200 is

P(X > 1200)

Z score corresponding to x=1200 is

z = $\frac{x - mean}{standard deviation}$

z = $\frac{1200-1028}{92}$

z = 1.8695 ~ 1.87

P(Z > 1.87 ) = 1 - P(Z < 1.87)

Using z-score table to find probability z < 1.87

P(Z < 1.87) = 0.9693

P(Z > 1.87) = 1 - 0.9693

P(Z > 1.87) = 0.0307

The probability that a randomly selected score exceeds 1200 is 0.0307

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2 years ago