Question 740308
12%-----------x
10%----------y

x+y=3000,,,,,,,,,,,,,,,,,,,,,,,,(1)


12%x=10%y+143

12%x-10%y=143
multiply by 100
12x-10y=14300.....................(2)

1.00	x	+	1.00	y	=	3300.00	.............1	
Total value								
12.00	x		-10.00	y	=	14300.00	.............2	
Eliminate	y							
multiply (1)by		10.00						
Multiply (2) by		1.00						
10.00	x		10.00	y	=	33000.00		
12.00	x		-10.00	y	=	14300.00		
Add the two equations								
22.00	x				=	47300.00		
/	22.00							
x	=	2150.00						
plug value of			x	in (1)				
1.00	x	+	1.00	y	=	3300.00		
2150.00		+		y	=	3300.00		
				y	=	3300.00		-2150.00
				y	=	1150.00		
				y	=	1150.00		
12%---------$2150
10%---------$1150