document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=867217>Question 867217</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Flashlight batteries are sold at Batteries Are us in two-packs and four-packs. A Batteries Are Us clerk hangs six packages of them on each of twelve hooks. He hung 200 batteries in all. How many two-packs are in stock?\r<BR>\n" );
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document.write( "solve a system of equations\r<BR>\n" );
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document.write( "i'm confused with the 2-pack vs 4 pack scenario. \r<BR>\n" );
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document.write( "i need to show all work<BR>\n" );
document.write( "please help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #522853 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=522853\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Flashlight batteries are sold at Batteries Are us in two-packs and four-packs. A Batteries Are Us clerk hangs six packages of them on each of twelve hooks. He hung 200 batteries in all. How many two-packs are in stock? <BR>\n" );
document.write( "solve a system of equations <BR>\n" );
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document.write( "Packs Equation:: t + f = 12*6 = 72 packs<BR>\n" );
document.write( "Barreries Eq::: 2t + 4f = 200 batteries<BR>\n" );
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document.write( "Modify for elimination:<BR>\n" );
document.write( "2t + 2f = 144<BR>\n" );
document.write( "2t + 4f = 200<BR>\n" );
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document.write( "Subtract and solve for \"f\":<BR>\n" );
document.write( "2f = 56<BR>\n" );
document.write( "f = 28 (# of 4-battery packs)<BR>\n" );
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document.write( "Solve for \"t\":<BR>\n" );
document.write( "t + f = 72<BR>\n" );
document.write( "28 + f = 72<BR>\n" );
document.write( "f = 44 (# of 2-battery packs)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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