document.write( "Question 916897: Two cars pass on a straight highway while traveling in opposite directions. One car is traveling 6 mph faster than the other car. After 1.5 hours the two cars are 171 miles apart. Find the speed of each car. Show work \n" ); document.write( "
Algebra.Com's Answer #556382 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Two cars pass on a straight highway while traveling in opposite directions. One car is traveling 6 mph faster than the other car. After 1.5 hours the two cars are 171 miles apart. Find the speed of each car. Show work \n" ); document.write( "---- \n" ); document.write( "1st car DATA: \n" ); document.write( "time = 1.5 hrs ; rate = x mph ; distance = r*t = 1.5x miles \n" ); document.write( "---- \n" ); document.write( "2nd car DATA: \n" ); document.write( "time = 1.5 hrs ; rate = x+6 mph ; distance = r*t = 1.5x+9 miles \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "dist + dist = 171 miles \n" ); document.write( "1.5x + 1.5x+9 = 171 \n" ); document.write( "3x = 162 \n" ); document.write( "x = 54 mph (slower car speed) \n" ); document.write( "x+6 = 60 mph (faster car speed) \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |