Question 694153
CD	7.00%		per annum	-------------	Amount invested =x	
AA bonds	12.00%		per annum	------------	Amount invested = y	
	170000					
Interest-----	17900					
						
CD	7.00%		per annum	---x		
AA bonds	12.00%		per annum	---y		
Total investment						
x	+	1	y=	170000	-------------1	
Interest on both investments						
7.00%	x	+	12.00%	y=	17900	
Multiply by		100				
7	x	+	12	y=	1790000.00	--------2
Multiply (1) by			-7			
we get						
-7	x	-7	y=	-1190000.00		
Add this to (2)						
0	x	5	y=	600000		
divide by		5				
			y	=	120000	
CD	7.00%	$	50000			
AA bonds	12.00%	$	120000			
						
CHECK						
50000	---------	7.00%	-------	3500.00		
120000	-------------	12.00%	-------	14400.00		
Total			--------------------	17900.00		
						
m.ananth@hotmail.ca