document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=109654>Question 109654</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a delivery service charges a base price for an overnight delivery of a package plus an extra charge for each pound the package weighs.  A customer is billed $22.85 for shipping a 3-pound package and $40 for shipping a 10-pound package.<BR>\n" );
document.write( "a. write an equation that gives the total cost of shipping a package as a function of the weight of the package<BR>\n" );
document.write( "b. find the cost of shipping a 15-pound package </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #79932 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=79932\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> BASE+3X=22.85<BR>\n" );
document.write( "BASE+10X=40<BR>\n" );
document.write( "BASE=40-10X NOW SUBSTITUTE (40-10X)FOR BASE IN THE FIRST EQUATION<BR>\n" );
document.write( "40-10X+3X=22.85<BR>\n" );
document.write( "-7X=22.85-40<BR>\n" );
document.write( "-7X=-17.15<BR>\n" );
document.write( "X=-17.15/-7<BR>\n" );
document.write( "X=$2.45 IS THE PRICE FOR EACH POUND.<BR>\n" );
document.write( "BASE+10*2.45=40<BR>\n" );
document.write( "BASE+24.50=40<BR>\n" );
document.write( "BASE=40-24.50<BR>\n" );
document.write( "BASE=15.50 IS THE BASE PRICE FOR THE DELIVERY.<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "15.50+3*2.45=22.85<BR>\n" );
document.write( "15.50+7.35=22.85<BR>\n" );
document.write( "22.85=22.85<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );