Question 473004
Investment I	8.00%		per annum						
Investment II	10.00%		per annum						
									
x+y=70000	------------------------1				
8.00%x+10.00%y=	$6,000.00			
Multiply by 	100							
8x+10y	=	$600,000.00		--------2	
									
Multiply (1) by -8						
we get									
									
-8x-8y	=-560000.00			
									
Add this to (2)									
									
2	y	=		$40,000.00			
									
divide by		2							
									
y	=		$20,000.00		investment at 	10.00%
Balance			$50,000.00		investment at 	8.00%
CHECK									
$50,000.00			$4,000.00						
$20,000.00			$2,000.00						
Total			$6,000.00