document.write( "Question 864790: If a sports car is traveling at 90 miles per hour, how long would it take the sports car to overtake a family car traveling at 50 miles per hour that left the same starting point 5 hours earlier?\r
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document.write( "The sports car would overtake the family car in __ hours (if needed, round to two decimal places).
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Algebra.Com's Answer #521298 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! D=RT \n" ); document.write( "FOR THE SPORTS CAR \n" ); document.write( "D=90(T-5) \n" ); document.write( "FOR THE FAMILY CAR \n" ); document.write( "D=50T \n" ); document.write( "90(T-5=50T \n" ); document.write( "90T-450=50T \n" ); document.write( "90T-50T=450 \n" ); document.write( "40T=450 \n" ); document.write( "T=450/40 \n" ); document.write( "T=11.25 HOURS \n" ); document.write( "PROOF: \n" ); document.write( "D=90(11.25-5) \n" ); document.write( "D=90*6.25 \n" ); document.write( "D=562.5 MILES \n" ); document.write( "D=50*11.25 \n" ); document.write( "D=562.5 MILES \n" ); document.write( " |