mollycorrine mollycorrine

15-07-2017
Mathematics

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the sum of three numbers is 85. the second number is 5 times more than the first. the third number is 2 time the first. what are the numbers?

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texaschic101 texaschic101

15-07-2017

x + y + z = 85
y = x + 5
z = 2x

x + (x + 5) + 2x = 85
4x + 5 = 85
4x = 85 - 5
4x = 80
x = 80/4
x = 20

x + 5 = 20 + 5 = 25
2x = 2(20) = 40

ur numbers are : 20,25,and 40

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