document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=523215>Question 523215</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone pleas help me solve this math problem, thank you.\r<BR>\n" );
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document.write( "Suppose that in one week, your company takes in $2,220 in sales at one of its cell phone stores. The price breakdown per phone is as follows:<BR>\n" );
document.write( "Cell phone model A4: $35<BR>\n" );
document.write( "Smartphone Z20: $50 \r<BR>\n" );
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document.write( "Suppose that a total of 51 phones were sold. \r<BR>\n" );
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document.write( "a.	Set up the system of equations that needs to be solved to determine how many of each type of phone were sold. Give a clear definition of the variables in the system.\r<BR>\n" );
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document.write( "b.	Solve the system of equations, showing clearly how the solution was determined, and state the results clearly in light of the real-world situation.\r<BR>\n" );
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document.write( "c.	Verify your results of the 2 linear equations by graphing in the desired graphing program and paste the graph in your assignment document (edit/copy image).\r<BR>\n" );
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document.write( "d.	Explain how the results are verified by the graph. <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #347229 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=347229\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Cell phone A4	x	numbers	,	Price =		$35.00		<BR>\n" );
document.write( "Smart phoneZ20	y	numbers	,	Price =		$50.00		<BR>\n" );
document.write( "				Total		51		<BR>\n" );
document.write( "	x	+		y	=	51	.............1	<BR>\n" );
document.write( "35	x	+	50	y	=	2220	.............2	<BR>\n" );
document.write( "Eliminate y								<BR>\n" );
document.write( "multiply (1)by 		-50						<BR>\n" );
document.write( "Multiply (2) by		1						<BR>\n" );
document.write( "-50	x		-50	y	=	-2550		<BR>\n" );
document.write( "35	x		50	y	=	2220		<BR>\n" );
document.write( "Add the two equations								<BR>\n" );
document.write( "-15	x				=	-330		<BR>\n" );
document.write( "/	-15							<BR>\n" );
document.write( "x	=	22						<BR>\n" );
document.write( "plug value of 			x	in (1)				<BR>\n" );
document.write( "	x	+		y	=	51		<BR>\n" );
document.write( "22		+		y	=	51		<BR>\n" );
document.write( "				y	=	51		-22<BR>\n" );
document.write( "				y	=	29		<BR>\n" );
document.write( "				y	=	29		<BR>\n" );
document.write( "Cell phone A4,	22	numbers						<BR>\n" );
document.write( "Smart phoneZ20,	29	numbers	\r<BR>\n" );
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document.write( "equation1			51		=	51			<BR>\n" );
document.write( "when x=	0,	y=	51	(	0	,	51	)	51    <BR>\n" );
document.write( "when y =	0,	x=	51	(	51	,	0	)	51    <BR>\n" );
document.write( "Equation 2									<BR>\n" );
document.write( "when x=	0,	y=	44.4	(	0	,	44.4	)	44 2/5<BR>\n" );
document.write( "when y =	0,	x=	63.43	(	63.43	,	0	)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28500%2C500%2C-70%2C70%2C-70%2C70%2Cgrid%281%29%2Ccircle%280%2C51%2C1%29%2Ccircle%2851%2C0%2C1%29%2Ccircle%280%2C44.4%2C1%29%2Ccircle%2863.43%2C0%2C1%29%2Ccircle%2822%2C29%2C1%29%2Cgraph%28500%2C500%2C-70%2C70%2C-70%2C70%2Cy=-x%2B51%2Cy=%28-7%2F10%29x%2B44.4%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >	<BR>\n" );
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document.write( "m.ananth@hotmail.ca								<BR>\n" );
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