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02-09-2017
Mathematics

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the sum of two numbers is 36. the smaller number is 1/3 of the larger number. find the two numbers

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APAgony APAgony

02-09-2017

x+y=36
x=y/3

substitute in the equation for x

y/3 + y =36
4y/3=36
4y=108
y=27

Then plug the value found for y into the equation for x
x=y/3
x=27/3
x=9

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