document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=590097>Question 590097</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i have a word problem that i need assisstance with, i am in an algebra level course.the word problem is below.\r<BR>\n" );
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document.write( "Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together they charged a total of $3950 . What was the rate charged per hour by each mechanic if the sum of the two rates was 225 per hour? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #375024 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=375024\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together they charged a total of $3950 . What was the rate charged per hour by each mechanic if the sum of the two rates was 225 per hour? <BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "r1 + r2 = 225<BR>\n" );
document.write( "20r1 + 15r2 = 3950<BR>\n" );
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document.write( "Multiply thru 1st equation by 20 to get:<BR>\n" );
document.write( "20r1 + 20r2 = 20*225<BR>\n" );
document.write( "20r1 + 15r2 = 3950<BR>\n" );
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document.write( "Subtract and solve for r2:<BR>\n" );
document.write( "5r2 = 550<BR>\n" );
document.write( "r2 = 110<BR>\n" );
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document.write( "Solve for \"r1\":<BR>\n" );
document.write( "r1 + r2 = 225<BR>\n" );
document.write( "r1 + 110 = 225<BR>\n" );
document.write( "r1 = 115<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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