He sum of two numbers is 40 . the smaller number is 18 less than the larger number. what are the numbers?

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24-04-2017
Mathematics

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He sum of two numbers is 40 . the smaller number is 18 less than the larger number. what are the numbers?

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ak78 ak78 · Answer 1 · 2017-04-24T20:46:29+02:00

ak78 ak78

24-04-2017

Assume x and y are the two numbers :
x + y = 80 - - - - (a)
Also, we know that x = y - 18
Replace the values of x in (a)
y - 18 + y = 80
2y = 98
y = 49
x = 49 - 18 = 31

Hope that helps & good luck

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