document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=872783>Question 872783</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Edwards family and the Chen family each used their sprinklers last summer. The water output rate for the Edwards family's sprinkler was 30L per hour. The water output rate for the Chen family's sprinkler was 20L per hour. The families used their sprinklers for a combined total of 65 hours, resulting in a total water output of 1700L . How long was each sprinkler used? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #526452 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=526452\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Volume per Hour uniform rates problem.<BR>\n" );
document.write( "RT=V for rate, time, volume.\r<BR>\n" );
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document.write( "__________________rate__________time__________volume<BR>\n" );
document.write( "Edwards___________30____________x_____________30x<BR>\n" );
document.write( "Chen______________20____________y_____________20y<BR>\n" );
document.write( "Totals__________________________65____________1700\r<BR>\n" );
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document.write( "Implied variables x and y.<BR>\n" );
document.write( "Two obvious equations are the time sum <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By=65 ALIGN=MIDDLE  ALT=\"x%2By=65\"   DISABLED_style= \"max-width:90%; height:auto;\" > and volume sum <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30x%2B20y=1700 ALIGN=MIDDLE  ALT=\"30x%2B20y=1700\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Volume equation simplifies to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B2y=170 ALIGN=MIDDLE  ALT=\"3x%2B2y=170\"   DISABLED_style= \"max-width:90%; height:auto;\" > and the time sum equation is equivalent to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B2y=130 ALIGN=MIDDLE  ALT=\"2x%2B2y=130\"   DISABLED_style= \"max-width:90%; height:auto;\" >, allowing for partial use of Elimination Method.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Ax=40 ALIGN=MIDDLE  ALT=\"1%2Ax=40\"   DISABLED_style= \"max-width:90%; height:auto;\" >, a fast answer result:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=40%29 ALIGN=MIDDLE  ALT=\"highlight%28x=40%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=25%29 ALIGN=MIDDLE  ALT=\"highlight%28y=25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours for Chen family. </SPAN>\n" );
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