document.write( "Question 791157: Can someone help me solve this?
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document.write( "Type of Problem: Applications of Linear Systems\r
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document.write( "Solve the problem by using a system of equations.
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document.write( "A Porsche and a VW Bug that were 450 miles apart traveled toward each other. They met after 5 hours. If one car can travel twice as fast as the other car, what were their speeds?
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Algebra.Com's Answer #479430 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! Slow speed, r \n" ); document.write( "Fast speed, 2r\r \n" ); document.write( "\n" ); document.write( "r*t=d\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Total time was 5 hours, so t=d/r and the other time would be d/(2r). \n" ); document.write( "?\r \n" ); document.write( "\n" ); document.write( "The amount of time, x, is the same for both cars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "CAR1___________r____________x__________rx \n" ); document.write( "CAR2___________2r___________x__________2rx \n" ); document.write( "Total______________________ 5__________450\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------------ \n" ); document.write( "SYSTEM OF EQUATIONS: \n" ); document.write( " \n" ); document.write( "------------------------------------------\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Substitution for x gives \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Fast car is |