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9966 [12]
2 years ago
13

Kenny is thinking of two numbers greater than 10.

Mathematics
1 answer:
soldier1979 [14.2K]2 years ago
8 0

Answer:

The numbers are 21 and 28

Step-by-step explanation:

Here, we want to write out the two numbers from the information in the question

Firstly, the two numbers are greater than 10

The highest common factor of both numbers is 7

While the lowest common multiple of both numbers is 84

Since 7 is a factor of both, the numbers must be multiples of 7

So let us list out the multiples of 7 greater than 10

14, 21 , 28 , 35 , 42 , 49, 56 , 63 , 70 , 77 , 84 ,

The numbers cannot be greater than 84

out of all, only the following is a multiple of 84;

14,21 , 28 , 42 and 84

The correct answers here are 21 and 28

Reason for this is that only the two satisfied the properties given

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Given

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Required

Determine Ming's error

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So, after calculating the unit rate, the unit should be:

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<em>Hence, (a) is correct</em>

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Answer:

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The probability that the first selection is orange is:

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The required probability is:

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P(1\ and\ 2) = \frac{10*9}{17*16}

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