Question 524225
15% of 30,000= 4500

Investment I	16.00%		per annum	---x						
Investment II	12.00%		per annum	---y						
										
x		+	y=	30000	------------------------1					
16.00%	x	+	12.00%	y=	=	$4,500.00				
Multiply by 		100								
16	x	+	12	y=	=	$450,000.00		--------2		
										
Multiply (1) by			-16							
we get										
										
-16	x	-16	y=	=		-480000.00				
										
Add this to (2)										
										
-4	y=	=		-30,000.00				
										
divide by		-4								
										
y	=		$7,500.00 investment at	12.00%
Balance			$22,500.00	investment at 	16.00%	
CHECK										
$22,500.00	---------	16.00%	-------	$3,600.00						
$7,500.00	-------	12.00%	-------	$900.00						
Total			--------------	$4,500.00	

m.ananth@hotmail.ca