Question 424851
AA	11.00%	per annum-------------	x
CD	5.00%	per annum------------	y
	total investment 170000			
	Interest-----$15,700.00		
......
x+y=170000	------------------------1		
11.00%x+5.00%y=$15,700.00	
Multiply by  100					
11x+5y=$1,570,000.00	
							
Multiply (1) by	-11				
we get							
							
-11x-11y=-1870000	
							
Add this to (2)							
							
-6y=-$300,000.00	
divide by -6					
y=$50,000.00 
Balance	$120,000.00