document.write( "Question 261454: You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph. What is your average speed? \n" ); document.write( "
Algebra.Com's Answer #192638 by palanisamy(496)\"\" \"About 
You can put this solution on YOUR website!
You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph.
\n" ); document.write( "Total distance travelled = 2*35+3*55+4*70
\n" ); document.write( " = 70+165+280
\n" ); document.write( " = 515 miles
\n" ); document.write( "Total time = 2+3+4 = 9 hours
\n" ); document.write( "Average speed = 515/9 = 57 2/9 miles/hour
\n" ); document.write( "
\n" );