document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1027938>Question 1027938</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the cost of a plumbers services is given by the formula: c =50+40t. c is the cost in dollars and t is the time worked in hours. how many hours did the plumber work if the cost was $330? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643159 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=643159\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "the cost of a plumbers services <BR>\n" );
document.write( "is given by the formula: c =50+40t.<BR>\n" );
document.write( "c is the cost in dollars and t is <BR>\n" );
document.write( "the time worked in hours. <BR>\n" );
document.write( "Cost = 50 + 40t<BR>\n" );
document.write( "$330 = 50 + 40t<BR>\n" );
document.write( "330 - 50 = 40t<BR>\n" );
document.write( "t = (330 - 50)/40<BR>\n" );
document.write( "t = 7 hours<BR>\n" );
document.write( "Hope this helps :-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );