document.write( "Question 314729: a speedboat travels 5 miles at 30 miles per hour, then 1 hour at 48 miles per hour. what was the boats average speed for the 6 mile trip? \n" ); document.write( "
Algebra.Com's Answer #225083 by checkley77(12844)\"\" \"About 
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D=RT
\n" ); document.write( "5=30T
\n" ); document.write( "T=5/30
\n" ); document.write( "T=1/6 IS THE TIME FOR THE 5 MILE TRIP.
\n" ); document.write( "1+1/6=1.1667 IS THE TOTAL TIME.
\n" ); document.write( "5+48=53 IS THE TOTAL DISTANCE
\n" ); document.write( "53=R*1.1667
\n" ); document.write( "R=53/1.1667
\n" ); document.write( "R=45.43 MPH IS THE AVERAGE SPEED.
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