document.write( "Question 71287This question is from textbook Beginning & intermediate algebra
\n" ); document.write( ": the jones family drove to Disneyland at 50mph and returned on the same route at 40mph. Find the distance to Disneyland if the total driving time was 7.2hrs. \n" ); document.write( "
Algebra.Com's Answer #50997 by checkley75(3666)\"\" \"About 
You can put this solution on YOUR website!
x/50+x/40=7.2
\n" ); document.write( "(40x+50x)/2000=7.2
\n" ); document.write( "90x/2000=7.2 now cross multiply
\n" ); document.write( "90x=2000*7.2
\n" ); document.write( "90x=14400
\n" ); document.write( "x=14400/90
\n" ); document.write( "x=160 miles to Disneyland
\n" ); document.write( "proof
\n" ); document.write( "160/50+160/40=7.2
\n" ); document.write( "3.2+4=7.2
\n" ); document.write( "7.2=7.2
\n" ); document.write( "
\n" ); document.write( "
\n" );