document.write( "Question 967791: A motorist travels at an average speed of 110km/h for 2 hours. He then travels at an average speed of 98km/h for 2.5 hours. Calculate his average speed over the whole distance? \n" ); document.write( "
Algebra.Com's Answer #591532 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
D=RT
\n" ); document.write( "D=100*2
\n" ); document.write( "D=200
\n" ); document.write( "D=98*2.5
\n" ); document.write( "D=245
\n" ); document.write( "200+245=R(2+2.5)
\n" ); document.write( "445=4.5R
\n" ); document.write( "R=445/4.5
\n" ); document.write( "R=98.89 KPH. ANS.
\n" ); document.write( "
\n" );