HesitantAlien1862 HesitantAlien1862
  • 23-11-2017
  • Mathematics
contestada

The sum of three numbers is 66 . the third number is 2 times the second. the first number is 6 more than the second. what are the numbers?

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princessreign2 princessreign2
  • 28-11-2017
21, 15, 30
a+b+c=66
c=2b; a=b+6
(b+6)+b+(2b)=66
    -6                 -6
(b)+b+(2b)=60
2b+2b=60
4b =60
(1/4) 4b = (1/4)60
b= 15, which is the second number
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