Question 550493
Investment I	4.00%		per annum						
Investment II	7.00%		per annum						
									
x+y	6000	------------------------1				
4.00%x+7.00%	y=$360.00			
Multiply by 		100							
4x+7y=$36,000.00		--------2	
									
Multiply (1) by			-4						
we get									
									
-4x-4y=	-24000.00			
									
Add this to (2)									
									
3y	=		$12,000.00			
									
divide by		3							
									
y	=		$4,000.00	investment at 	7.00%
Balance			$2,000.00	investment at 	4.00%
CHECK									
$2,000.00			$80.00						
$4,000.00			$280.00						
Total			$360.00