document.write( "Question 1068128: Kim bicycles 5 km/h faster than Tim. In the time that it takes Tim to bicycle 42 km, Kim can bicycle 57 km. How fast does Kim travel? \n" ); document.write( "
Algebra.Com's Answer #683292 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Kim bicycles 5 km/h faster than Tim. In the time that it takes Tim to bicycle 42 km, Kim can bicycle 57 km. How fast does Kim travel? \n" ); document.write( "------- \n" ); document.write( "Tim DATA: \n" ); document.write( "rate = r km/hr ; time = t hrs ; distance = r*t = 42 km \n" ); document.write( "------------- \n" ); document.write( "Kim DATA: \n" ); document.write( "rate = r+5 km/hr ; time = t hrs ; distance = (r+5)t = 57 km \n" ); document.write( "------- \n" ); document.write( "Equation: \n" ); document.write( "rt + 5t = 57 \n" ); document.write( "42 + 5t = 57 \n" ); document.write( "5t = 15 \n" ); document.write( "time = 3 hrs \n" ); document.write( "----- \n" ); document.write( "Ans: Kim rate = dist/time = 57/3 = 19 km/hr \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------- \n" ); document.write( " \n" ); document.write( " |