Question

The sum of three numbers is140 . The first number is 8 more than the third. The second number is 4 times the third. What are the numbers? First number: Second number: Third number:

Answer 1

x= 30

y= 88

z= 22

Explanation:

x= z+8

y= 4z

x + y + z = 140

we substitute to the third equation (z+8) + (4z) + z= 140 so we obtain 6z+8= 140. Z is then equal to 140-8/6= 22.

Then x= 22+8= 30, y=22(4)= 88

30+88+22= 140