19-05-2014
Mathematics

contestada

the difference between two positive integers is 40. one integer is three times as great as the other. find the integer.

Respuesta :

19-05-2014

Be the integers: x and y

x - y = 40
x = 3y

Replace x in the first equation:

3y - y = 40
2y = 40
y = 20
x = 60

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