Question 724063
Part I	4.00%		per annum	-------------	Amount invested =x					
Part II	6.00%		per annum	------------	Amount invested = y					
	5000									
Interest-----	270									
										
Part I	4.00%		per annum	---x					*	
Part II	6.00%		per annum	---y						
Total investment										
x	+	1	y=	5000	-------------1					
Interest on both investments										
4.00%	x	+	6.00%	y=	270					
Multiply by		100								
4	x	+	6	y=	27000.00	--------2				
Multiply (1) by			-4							
we get										
-4	x	-4	y=	-20000.00						
Add this to (2)										
0	x	2	y=	7000						
divide by		2								
			y	=	3500				 -	x)
Part I	4.00%	$	1500							
Part II	6.00%	$	3500							
								0.8		
CHECK								0.75		
1500	---------	4.00%	-------	60.00				260		
3500	-------------	6.00%	-------	210.00						
Total			--------------------	270.00