SOLUTION: . The difference of two numbers is 11 and one-fifth of their sum is 9. Find the numbers. 17, 17 18, 28 28, 17 17, 28 28, 18

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: . The difference of two numbers is 11 and one-fifth of their sum is 9. Find the numbers. 17, 17 18, 28 28, 17 17, 28 28, 18       Log On


   

Question 977960: . The difference of two numbers is 11 and one-fifth of their sum is 9. Find the numbers.
17, 17
18, 28
28, 17
17, 28
28, 18
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
let the numbers be x and y
x-y=11
(1/5)(x+y)=9
x-y=11
x+y=45, multiplying by 5.
2x=56
x=28
y=17
difference is 11
sum is 45, and one-fifth of that is 9.