Question 1113361

x	dimes'									
y	quarters
										
Equation for total coins											
												
	x	+		y	=	40	.............1					
												
Equation for amount 
												
10 	x	+	25	y	=	775.00 	.............2					
Eliminate y												
multiply (1)by		-25.00										
Multiply (2) by		1										
-25.00	x		-25.00	y	=	-1000.00						
10.00			25.00	y	=	775.00						
Add the two equations												
-15.00	x				=	-225.00						
/	-15.00											
x	=	15.00										
plug value of			x	in (1)								
1.00	x	+	1.00	y	=	40						
15.00		+	1.00	y	=	40						
			1.00	y	=	25						
				y=		25						
													15	dimes'											25	quarters