document.write( "Question 203774: This will use distance velocity and time and will require 2 equations\r
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document.write( "I bicycle at 20 mph and leave the starting point at 8 AM\r
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document.write( "My buddy drives at 40 mph and leaves the starting point at 10 AM following me\r
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document.write( "How far have I gone when he catches up and how much time has passed\r
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document.write( "I got the answer as, I will have traveled 80 miles and 4 hours will have passed, but I would like to see it in a formula, so I can understand the algebra formula
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Algebra.Com's Answer #153758 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! if your time is T, then your buddy's time is T-2 (two hours less) \n" ); document.write( "you know the rates \n" ); document.write( "when he catches up, you both will have travelled an EQUAL distance \n" ); document.write( "d = r * t\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "20 * T = 40 * (T - 2) ___ 20T = 40T - 80 ___ -20T = -80 ___ T = 4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting back to find distance ___ d = 20 * 4 ___ d = 80 \n" ); document.write( " |