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29-06-2020
Mathematics

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Two numbers are in the ratio 3:7
One of the numbers are 42.
What are the two possible values for the other number?

Respuesta :

29-06-2020

Answer:

98 or 18

Step-by-step explanation:

Let's call the numbers 3x and 7x. We have two cases, either 42 is 3x or 42 is 7x. Looking at the first case, if 3x = 42, x = 14 which means the other number is 7 * 14 = 98. Looking at the second case, if 7x = 42, that means x = 6 so the other number is 3 * 6 = 18.

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