document.write( "Question 86323This question is from textbook Beginning and Intermediate Algebra
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document.write( ": Hello, this word problem is from Gold's Math 40\r
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document.write( "A Piper Cub airplane has an average air speed that is 10mph faster than a Cessna 150 airplane. If the combined distance traveled by these two small planes is 690 miles after 3 hours. What is the average speed of each plane?\r
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document.write( "Any help will be appreciated,this word problem was on a recent quiz. \n" );
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Algebra.Com's Answer #62426 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A Piper Cub airplane has an average air speed that is 10mph faster than a Cessna 150 airplane. If the combined distance traveled by these two small planes is 690 miles after 3 hours. What is the average speed of each plane? \n" ); document.write( "----------------- \n" ); document.write( "Cessna 150 DATA: \n" ); document.write( "rate = x mph; time = 3 hrs; distance = rt = 3x miles \n" ); document.write( "-------------- \n" ); document.write( "Piper Cub DATA: \n" ); document.write( "rate = x+10 mph; time = 3 hrs; distance = rt = 3(x+10) = 3x+30 miles \n" ); document.write( "----------------------- \n" ); document.write( "EQUATION: \n" ); document.write( "distance + distance = 690 miles \n" ); document.write( "3x + 3x+30 = 690 \n" ); document.write( "6x = 660 \n" ); document.write( "x= 110 mph (speed of the Cessna) \n" ); document.write( "---------- \n" ); document.write( "x+10 = 120 mph (speed of the Piper Cub) \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( "3x + \n" ); document.write( " \n" ); document.write( " |