document.write( "Question 92482: City A and City B are 440 miles apart. If Jack leaves city A traveling 50mph and Jill leaves city B traveling 60mph, how long will they travel if they drive toward each other? \n" ); document.write( "
Algebra.Com's Answer #67322 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! City A and City B are 440 miles apart. If Jack leaves city A traveling 50mph and Jill leaves city B traveling 60mph, how long will they travel if they drive toward each other? \n" ); document.write( ": \n" ); document.write( "Let t = traveling time when they meet \n" ); document.write( ": \n" ); document.write( "We know that when they meet, their combined travel distance will be 440 mi \n" ); document.write( ": \n" ); document.write( "Dist = speed * time \n" ); document.write( ": \n" ); document.write( "jack's dist + Jill's dist = 440 \n" ); document.write( " 50t + 60t = 440 \n" ); document.write( "110t = 440 \n" ); document.write( "t = 440/110 \n" ); document.write( "t = 4 hrs \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check: 4(50) + 4(60) = 440 \n" ); document.write( " |