document.write( "Question 257413: 2 cars leave at a town at the same time & travel in opposite directions .the speed of one car is 12 km/hr moere than the other . thjey are 444 km apart after 3 hours . find the speed of each car . \n" ); document.write( "
Algebra.Com's Answer #189357 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! D=RT \n" ); document.write( "D1=R3 FOR CAR ONE. \n" ); document.write( "D2=(R+12)3 FOR CAR TWO. \n" ); document.write( "D1+D2=444 \n" ); document.write( "444=R*3 \n" ); document.write( "R=444/3 \n" ); document.write( "R=148 \n" ); document.write( "R+(R+12)=148 \n" ); document.write( "2R=148-12 \n" ); document.write( "2R=136 \n" ); document.write( "R=136/2 \n" ); document.write( "R=68 KM/HR. IS THE SPEED OF THE SLOWER CAR. \n" ); document.write( "68+12=80 KM/HR IS THE SPEED OF THE FASTER CAR. \n" ); document.write( "PROOF; \n" ); document.write( "444=68*3+80*3 \n" ); document.write( "444=204+240 \n" ); document.write( "444=444 \n" ); document.write( " |