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3 years ago

Sam and Bethan share £54 in the ratio of 5:4. Work out how much each person gets

Mathematics

1 answer:

KatRina [158]3 years ago

7 0

How much Sam will get: 5/9 of the 54 or £30

How much Bethan will get: 4/9 of the 54 or £24

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What’s the answer to the question mark

melamori03 [73]

The missing number is 20

<h3>How to determine the number</h3>

We can see that the values at the top must be made equal to that at the bottom

For the top, we have

30 + 11 = 41

For the bottom, we should have:

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Now, let's solve for 'x' to determine the missing figure;

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collect like terms

x = 41 - 21

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Answer:

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Step-by-step explanation:

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3 years ago

What is the third quartile, Q3, of the following distribution?

GREYUIT [131]

Answer:

The third quartile is:

$Q_3=29$

Step-by-step explanation:

First organize the data from lowest to highest

4, 5, 10, 12, 14, 16, 18, 20, 21, 21, 22, 22, 24, 26, 29, 29, 33, 34, 43, 44

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For a set of n data organized in the form:

$x_1, x_2, x_3, ..., x_n$

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$Q_3=x_{\frac{3}{4}(n+1)}$

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$Q_3=x_{\frac{3}{4}(20+1)}$

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The third quartile is between $x_{15}=29$ and $x_{16}=29$

Then

$Q_3 =x_{15} + 0.75*(x_{16}- x_{15})$

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Answer:

Is this a poem or song?

Step-by-step explanation:

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