Question 739875
Part I	5.00%		per annum	-------------	Amount invested =x		
Part II	7.00%		per annum	------------	Amount invested = y		
	10000						
Interest-----	680.00						
							
Part I	5.00%		per annum	---x			
Part II	7.00%		per annum	---y			
Total investment							
x	+	1	y=	10000	-------------1		
Interest on both investments							
5.00%	x	+	7.00%	y=	680		
Multiply by		100					
5	x	+	7	y=	68000.00	--------2	
Multiply (1) by			-5				
we get							
-5	x	-5	y=	-50000.00			
Add this to (2)							
0	x	2	y=	18000			
divide by		2					
			y	=	9000		
Part I	5.00%	$	1000				
Part II	7.00%	$	9000				
							
CHECK							
1000	---------	5.00%	-------	50.00			
9000	-------------	7.00%	-------	630.00			
Total			--------------------	680.00			
							
m.ananth@hotmail.ca