document.write( "Question 1124196: Beth is going to be in the big race next week. She will have to run and bike a total of 85 miles. She can run 6 mph and bike at 22 mph. During the race she will bike for 2 hours more than she runs. Find the time she will spend running and the time she will spend biking.\r
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document.write( "Rate =X; formula used was d=rt
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document.write( "run 85=x(6mph) bike 85=(2+x)(22 mph)
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document.write( "I went wrong somewhere.
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Algebra.Com's Answer #740544 by ikleyn(52817)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "Let \"x\" be the time she will spend biking (in hours).\r\n" ); document.write( "\r\n" ); document.write( "Then the time running is (x+2) hours.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The distance running is 6*(x+2) (speed times time).\r\n" ); document.write( "\r\n" ); document.write( "The distance biking is 22*x (speed times time).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Your equation is\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " Distanse + distance = total distance, or\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 6*(x+2) + 22x = 85 miles.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Simplify and solve for x.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Then evaluate (x+2).\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |