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larisa [96]
3 years ago
10

Colm and Gaz share some sweets in the ratio 4:3 If Colm gets 28 sweets how many does Gaz get?

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0

Answer:

21 sweets

Step-by-step explanation:

Colm : Gaz

4 : 3

4 units = 28

1 unit = 28 ÷ 4 = 7

3 units = 7 x 3 = 21 sweets

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For a normal distribution with μ=500 and σ=100, what is the minimum score necessary to be in the top 60% of the distribution?
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Answer:

475.

Step-by-step explanation:

We have been given that for a normal distribution with μ=500 and σ=100. We are asked to find the minimum score that is necessary to be in the top 60% of the distribution.

We will use z-score formula and normal distribution table to solve our given problem.

z=\frac{x-\mu}{\sigma}

Top 60% means greater than 40%.

Let us find z-score corresponding to normal score to 40% or 0.40.

Using normal distribution table, we got a z-score of -0.25.

Upon substituting our given values in z-score formula, we will get:

-0.25=\frac{x-500}{100}

-0.25*100=\frac{x-500}{100}*100

-25=x-500

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x=475

Therefore, the minimum score necessary to be in the top 60% of the distribution is 475.

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3 years ago
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Mason randomly chooses a card from a standard deck of playing cards. What is the probability that it is not an ace, given it is
bogdanovich [222]

Answer:

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Step-by-step explanation:

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2 years ago
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