document.write( "Question 892020: You and a friend take turns driving on a 450 mile trip. Your friend drives for 3.5 hours at an average speed of 60 miles per hour. What must your average speed be for the remainder of the trip if you want to reach your hotel in 4 more hours.\r
\n" ); document.write( "\n" ); document.write( "My work: \r
\n" ); document.write( "\n" ); document.write( "60 x 3.5(the hours te friend drove) = 210\r
\n" ); document.write( "\n" ); document.write( "4/210 = 52.5 \r
\n" ); document.write( "\n" ); document.write( "52.5 miles/hour\r
\n" ); document.write( "\n" ); document.write( "However my brother checked it and told me it was wrong and I'm not sure what I did. \r
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Algebra.Com's Answer #540230 by richwmiller(17219) $\"\"$ $\"About$

You can put this solution on YOUR website!
60 x 3.5= 210
\n" ); document.write( "Your friend drove 210 miles
\n" ); document.write( "the total trip is 450\r
\n" ); document.write( "\n" ); document.write( "450-210=240
\n" ); document.write( "You need to drive 240 more miles.\r
\n" ); document.write( "\n" ); document.write( "240/4=60 mph
\n" ); document.write( "You must continue to average 60 mph. to complete the remaining part in 4 hours\r
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