savannanick
Oct 19, 2010, 07:37 PM
What's the awnswer to there's 2 numbers have a sum of 102 and there difference is 26 find the larger number? Please help
Unknown008
Oct 20, 2010, 09:33 AM
Let the smaller number be x and the larger number be y.
From the first statement, we know that:
x + y = 102
From the second statement, we know that:
y - x = 26
Can you try to solve them simultaneously now? Eliminating x (the smaller number) by adding the two equations so that only y (the larger number) remains is the shortest method.
Post what you get! :)
RPVega
Oct 25, 2010, 02:01 PM
Let's see: x+y=102
x-y = 26
Adding the bottom equation to the top equation yields: 2x = 128. Solving for x, x= 128/2 = 64.
Next, setting x=64 in the top equation,
we have 64 + y = 102. From here, we have y = 102 - 64 = 38. Since 64 > 38, your answer is 64.
I hope this is of some help. Good luck!