document.write( "Question 1042630: Artie the Ant walked directly from the very bottom to the very top of a 108 foot tall tree and directly back down. Artie walked up the tree at a rate of 1.5 feet per minute and down the tree at a rate of 2.25 feet per minute. How many minutes did the round trip take? \r
\n" ); document.write( "\n" ); document.write( "Answer: 120 minutes (How?)
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Algebra.Com's Answer #657626 by jim_thompson5910(35256)\"\" \"About 
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\"Artie walked up the tree at a rate of 1.5 feet per minute\", so r = 1.5
\n" ); document.write( "The tree is 108 ft tall, so d = 108\r
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\n" ); document.write( "\n" ); document.write( "D = r*t
\n" ); document.write( "108 = 1.5*t
\n" ); document.write( "108/1.5 = (1.5*t)/1.5
\n" ); document.write( "72 = t
\n" ); document.write( "t = 72\r
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\n" ); document.write( "\n" ); document.write( "It took Artie 72 minutes to go up the tree\r
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\n" ); document.write( "\n" ); document.write( "\"Artie walked...down the tree at a rate of 2.25 feet per minute\", so r = 2.25
\n" ); document.write( "D = 108 is the distance from the top to the bottom of the tree\r
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\n" ); document.write( "\n" ); document.write( "D = r*t
\n" ); document.write( "108 = 2.25*t
\n" ); document.write( "108/2.25 = (2.25*t)/2.25
\n" ); document.write( "48 = t
\n" ); document.write( "t = 48\r
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\n" ); document.write( "\n" ); document.write( "It took Artie 48 minutes to go down the tree\r
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\n" ); document.write( "\n" ); document.write( "In total, the ant traveled for 72+48 = 120 minutes
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