SOLUTION: If the sum of two no. is 57 and difference is 20. What are the possible pairs. Plez help me

Algebra.Com
Question 1089721: If the sum of two no. is 57 and difference is 20. What are the possible pairs.
Plez help me
Answer by ikleyn(52777)   (Show Source): You can put this solution on YOUR website!
.
x + y = 57.
x - y = 20.
-----------------Add the two equations. You will get

2x = 57 + 20 = 77.   Hence,  x =   = 38.5.

Then from the first equation,  y = 57 - 37.5 = 18.5.


Two possible pairs are (38.5,18.5)  and  (18.5,38.5).

Solved.



RELATED QUESTIONS

The sum of two whole number is 45. The difference is 10. What are possible pairs? (answered by josgarithmetic,ikleyn)
The sum of two integers is between -20 and -4. If you subtract these two integers, the... (answered by greenestamps)
If the sum of two numbers are 110 and the difference is 20 what are the two... (answered by Jk22)
Sum of two whole number is 45 and their difference is less than 10. The all possible... (answered by ikleyn)
sum,difference and product of two no are in the ratio 1:11:90 then what is the bigger... (answered by Theo)
The sum of the two numbers is 45 and their difference is less than 10. The number of all (answered by Alan3354)
The sum of the two whole numbers is 45 and their difference is less than 10. The number... (answered by ankor@dixie-net.com,greenestamps,Solver92311)
The sum of two whole numbers is 45 and their difference is less than 10. The numbers of... (answered by greenestamps,ikleyn)
The difference of two numbers is 2.If the sum of their sqaures is 20,What are the... (answered by JulietG,richwmiller)