document.write( "Question 252179: Tom drives at a constant speed of 60 mph for 6 hours and then at a constant speed of 40 mph for 4 hours. Find his average speed (in mph) for the 10 hours.\r
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document.write( "A. 10 B. 20 C. 50 D. 52 e 55 2/3 \n" );
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Algebra.Com's Answer #183944 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! [(60*6)+(40*4)]/10=(360+160)/10=520/10=52 mph. is the average speed. \n" ); document.write( "Aanswer D). \n" ); document.write( " |