Question 882353
Part I	3.00%		per annum	-------------	Amount invested =x	
Part II	4.00%		per annum	------------	Amount invested = y	
	12000					
Interest-----	440.00					
						
Part I	3.00%		per annum	---x		
Part II	4.00%		per annum	---y		
Total investment						
x	+	1	y=	12000	-------------1	
Interest on both investments						
3.00%	x	+	4.00%	y=	440	
Multiply by		100				
3	x	+	4	y=	44000.00	--------2
Multiply (1) by			-3			
we get						
-3	x	-3	y=	-36000.00		
Add this to (2)						
0	x	1	y=	8000		
divide by		1				
			y	=	8000	
Part I	3.00%	$	4000			
Part II	4.00%	$	8000			
						
CHECK						
4000	---------	3.00%	-------	120.00		
8000	-------------	4.00%	-------	320.00		
Total			--------------------	440.00		
						
m.ananth@hotmail.ca