Question 557745
Investment I	7.00%		per annum	x					
Investment II	8.00%		per annum	y					
									
x+y=27000	------------------------1				
7.00%x+	8.00%y=	$2,060.00			
Multiply by 		100							
7x+8y=$206,000.00		--------2	
									
Multiply (1) by			-7						
we get									
									
-7x-7y=	-189000.00			
									
Add this to (2)									
									
y	=		$17,000.00	investment at 	8.00%
Balance			$10,000.00	investment at 	7.00%
CHECK									
$10,000.00			$700.00						
$17,000.00			$1,360.00						
Total			$2,060.00