document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159990>Question 159990</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mrs. Johnson planned to spend $78 for fabric to make draperies.She found her fabric on sale at 20 percent less per yard than she expected and was able to buy her drapery fabric plus 4 extra yards for a bedspread for $83.20. How much fabric had she planned to buy and what was the original cost per yard? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #118044 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=118044\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mrs. Johnson planned to spend $78 for fabric to make draperies. She found her<BR>\n" );
document.write( " fabric on sale at 20 percent less per yard than she expected and was able to<BR>\n" );
document.write( " buy her drapery fabric plus 4 extra yards for a bedspread for $83.20.<BR>\n" );
document.write( " How much fabric had she planned to buy and what was the original cost per yard?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let x = amt of fabric she planned to buy<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(x+4) = amt she ended up buying<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Presale price per yard = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=78%2Fx ALIGN=MIDDLE  ALT=\"78%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "20% off price per yard = .8*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=78%2Fx ALIGN=MIDDLE  ALT=\"78%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=62.4%2Fx ALIGN=MIDDLE  ALT=\"62.4%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "Actual price per yard = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=83.20%2F%28%28x%2B4%29%29 ALIGN=MIDDLE  ALT=\"83.20%2F%28%28x%2B4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "20% off = Actual price<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=62.4%2Fx ALIGN=MIDDLE  ALT=\"62.4%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=83.20%2F%28%28x%2B4%29%29 ALIGN=MIDDLE  ALT=\"83.20%2F%28%28x%2B4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cross multiply<BR>\n" );
document.write( "83.2x = 62.4(x+4)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "83.2x = 62.4x + 249.6<BR>\n" );
document.write( ":<BR>\n" );
document.write( "83.2x - 62.4x = 249.6<BR>\n" );
document.write( ":<BR>\n" );
document.write( "20.8x = 249.6<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=249.6%2F20.8 ALIGN=MIDDLE  ALT=\"249.6%2F20.8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 12 yds she planned to buy<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Presale price = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=78%2F12 ALIGN=MIDDLE  ALT=\"78%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" > = $6.50 per yd<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check solution by finding the actual price per yard:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=83.20%2F%28%2812%2B4%29%29 ALIGN=MIDDLE  ALT=\"83.20%2F%28%2812%2B4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=83.20%2F16 ALIGN=MIDDLE  ALT=\"83.20%2F16\"   DISABLED_style= \"max-width:90%; height:auto;\" > = $5.20 per yd<BR>\n" );
document.write( "Is it equal to 20% off of $6.50 a yard?<BR>\n" );
document.write( ".8 * 6.5 = $5.20, hurray, it is! </SPAN>\n" );
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