document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=987215>Question 987215</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ben walks at a rate of 3 miles per hour. He runs at a rate of 6 miles per hour. In one week, the combined distance that he walks and runs is 210 miles.<BR>\n" );
document.write( "Write a linear model that relates the number of hours that Ben walks to the number of hours Ben runs.<BR>\n" );
document.write( "Ben runs for 25 hours. For how many hours does he run?  </SPAN>\n" );
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document.write( "W=hours walked; R=hours ran<BR>\n" );
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document.write( "3W+6R=210<BR>\n" );
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document.write( "For R=25:<BR>\n" );
document.write( "3W+6(25)=210<BR>\n" );
document.write( "3W=150=210<BR>\n" );
document.write( "3W=60<BR>\n" );
document.write( "W=30<BR>\n" );
document.write( ".<BR>\n" );
document.write( "ANSWER: He walked 30 hours<BR>\n" );
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