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 #192637 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "If you travel 2 hours at 35 mph, then you travel 70 miles. 3 hours at 55 means you travel 165 miles, and 4 hours at 70 is 280 miles. 70 plus 165 plus 280 is 515 miles. It took 9 hours to travel 515 miles, hence average speed is 515 divided by 9 or just a touch over 57.2 mph.\r
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