document.write( "Question 402415: A car started out from Memphis toward Little Rock at the rate of 60km/h. A second car left from the same point 2 hours later and drove along the same route at 75km/h. How long did it take the second car to catch the first car. Use the formula d= RxT, and also make a chart. \n" ); document.write( "
Algebra.Com's Answer #284655 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! D=RT \n" ); document.write( "D=60T FOR THE FIRST CAR. \n" ); document.write( "D=75(T-2) FOR THE SECOND CAR. \n" ); document.write( "60T=75(T-150) \n" ); document.write( "60T=75T-150 \n" ); document.write( "60T-75T=-150 \n" ); document.write( "-15T=-150 \n" ); document.write( "T=-150/-15 \n" ); document.write( "T=10 HOURS AFTER THE FIRST CAR LEAVES THEY WILL MEET. \n" ); document.write( "PROOF: \n" ); document.write( "60*10=75(10-2) \n" ); document.write( "600=75*8 \n" ); document.write( "600=600 \n" ); document.write( "10-2=8 HOURS FOR THE SECOND CAR TO CATCH THE FIRST CAR. \n" ); document.write( " |