halakhanr halakhanr
  • 07-10-2017
  • Mathematics
contestada

The sum of two numbers is seventy-two. Twice one of them equals ten times the other. What are the numbers?

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APAgony
APAgony APAgony
  • 07-10-2017
x+y=72
2x=10y

Solve one equation, then plug the answer into the other.

x=5y
5y+y=72
6y=72
y=12

Now that we have one answer, we can use that to solve the final answer.
x+y=72
x+12=72
x=60
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mariap3504 mariap3504
  • 07-10-2017
the answer to the question is x=60
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