document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=47191>Question 47191</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0028253337/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> The Madison Local High School marching band sold gift wrap to earn money for a band trip to Orlando, Florida. The Gift wrap in solid colors sold for $4.00 per roll, and the print gift wrap sold for $6.00 per roll. The total numer of rolls sold was 480, and the total amount of money collected was $2340. How many rolls of each kind of gift wrap were sold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #31248 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=31248\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Start with the basic formula:  A + B = C<BR>\n" );
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document.write( "(Rate of A)(Number of items A) + (Rate of B)(Number of items B) = Total amount C<BR>\n" );
document.write( "[Do not add, multiply or combine Rate A with Rate B.<BR>\n" );
document.write( "Rate = miles/hour; cost ($); percents (%), etc.<BR>\n" );
document.write( "Number of items = total count of each item.]<BR>\n" );
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document.write( "($4.00)(x) + ($6.00)(480-x) =$2340  [Plug in the values. Use A + (C-A) = C for the \"number of items\"]<BR>\n" );
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document.write( "4x + 2880 - 6x = 2340 [Multimply]<BR>\n" );
document.write( "4x - 6x + 2880 - 2880 = 2340 - 2880 [Combine like terms and solve for \"x\"]<BR>\n" );
document.write( "-2x = -540<BR>\n" );
document.write( "x = 270<BR>\n" );
document.write( "So, solid colors = 270<BR>\n" );
document.write( "and the print wrap = (480-x) = 480-270 = 210<BR>\n" );
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document.write( "Check by plugging (x=270) back into the original equation.<BR>\n" );
document.write( "($4.00)(x) + ($6.00)(480-x) =$2340<BR>\n" );
document.write( "($4.00)(270) + ($6.00)(480-270) =$2340<BR>\n" );
document.write( "($1080) + (6)(210) = $2340<BR>\n" );
document.write( "$2340=$2340 [Checks out]\r<BR>\n" );
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document.write( "  </SPAN>\n" );
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