Question 803721
Part I	8.00%		per annum	-------------	Amount invested =x		
Part II	5.00%		per annum	------------	Amount invested = y		
	100000						
Interest-----	6800.00						
							
Part I	8.00%		per annum	---x			
Part II	5.00%		per annum	---y			
Total investment							
x	+	1	y=	100000	-------------1		
Interest on both investments							
8.00%	x	+	5.00%	y=	6800		
Multiply by		100					
8	x	+	5	y=	680000.00	--------2	
Multiply (1) by			-8				
we get							
-8	x	-8	y=	-800000.00			
Add this to (2)							
0	x	-3	y=	-120000			
divide by		-3					
			y	=	40000	 -	x)
Part I	8.00%	$	60000				
Part II	5.00%	$	40000				
							
CHECK							
60000	---------	8.00%	-------	4800.00			
40000	-------------	5.00%	-------	2000.00			
Total			--------------------	6800.00