document.write( "Question 759942: A truck heads north at a constant speed of 80 km/h. A car leaves 20 minutes
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document.write( "later heading north along the same road and travelling at a constant speed of
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document.write( "90 km/h.
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document.write( "Write an equation that could be used to determine how much time in
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document.write( "hours, t, the car travels until it catches up to the truck. \r
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document.write( "**The correct answer is 90t = 80(t+1/3) , but I need help understanding why** \n" );
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Algebra.Com's Answer #462355 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! The truck travels for 1/3 hour plus some unknown time, t. \n" ); document.write( "Twenty minutes is 1/3 hour. \n" ); document.write( "This distance is \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The car, starting from the same departure point, travels for time, t, and catches-up with the truck. \n" ); document.write( "This distance is |