Two numbers add to 218. The first is 47 less than the second. What are the numbers?

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gramtam gramtam

01-03-2017
Mathematics

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Two numbers add to 218. The first is 47 less than the second. What are the numbers?

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Livingsta Livingsta · Answer 1 · 2017-03-07T11:22:47+01:00

Livingsta Livingsta

07-03-2017

x + y = 218

x = y - 47

y - 47 + y = 218

2y - 47 = 218

2y = 218 + 47

2y = 265

y = 265/2 = 132.5

y = 132.5

x = y - 47 = 132.5 - 47 = 85.5

x + y = 132.5 + 85.5 = 218

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nobillionaireNobley nobillionaireNobley · Answer 2 · 2017-03-07T12:54:40+01:00

nobillionaireNobley nobillionaireNobley

07-03-2017

Let the second number be x, then the first number is x - 47
x + x - 47 = 218
2x = 218 + 47 = 265
x = 265/2 = 132.5

Therefore, the first number is 132.5 - 47 = 85.5 and the second number is 137.5

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