Question 428429
Part I	8.50%		per annum						
Part II	7.00%		per annum						
									
x+y=10000	------------------------1				
8.50%x-7.00%y=$200.00			
Multiply by 100							
8.5x-7y	=$20,000.00--------2	
									
Multiply (1) by	-8.5						
we get									
									
-8.5x-8.5y=-85000.00			
									
Add this to (2)									
									
x-15.5y	=-$65,000.00			
									
divide by -15.5							
									
y=$4,193.55 investment at7.00%
Balance	$5,806.45 investment at 	8.50%