SOLUTION: The sum of three numbers is 110. The second number is 10 less than the first. The third number is 4 times the first. What are the numbers?

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Question 1151190: The sum of three numbers is 110. The second number is 10 less than the first. The third number is 4 times the first. What are the numbers?
Answer by MathLover1(20850) About Me  (Show Source):
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The sum of three numbers is 110.
x%2By%2Bz=110
The second number is 10 less than the first.
y=x-10
The third number is 4 times the first.
z=4x
x%2By%2Bz=110......substitute y and z
x%2Bx-10%2B4x=110.......solve for x
6x=110%2B10
6x=120
x=20
find next one
y=20-10
y=10
z=4%2A20
z=80
so, the numbers are: 10,20, and 80