document.write( "Question 848730: Justin can climb a coconut tree at the rate of 10 ft. per minute and return at 20 ft. per minute. If it took him 3 minutes to climb and return, what is the height of the coconut tree \n" ); document.write( "
Algebra.Com's Answer #511253 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Justin can climb a coconut tree at the rate of 10 ft. per minute and return at 20 ft. per minute. If it took him 3 minutes to climb and return, what is the height of the coconut tree
\n" ); document.write( "-----
\n" ); document.write( "Up the tree DATA:
\n" ); document.write( "rate = 10 ft/min ; time = t min ; distance = 10t ft
\n" ); document.write( "-------------
\n" ); document.write( "Down the tree DATA:
\n" ); document.write( "rate = 20 ft/min ; time = 3-t min ; distance = 20(3-t) ft
\n" ); document.write( "---------
\n" ); document.write( "Equation:
\n" ); document.write( "dist up = dist down
\n" ); document.write( "10t = 20(3-t)
\n" ); document.write( "10t = 60-20t
\n" ); document.write( "30t = 60
\n" ); document.write( "time up = 2 min
\n" ); document.write( "distance up = 10*(2)min = 20 ft (height of the tree)
\n" ); document.write( "====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "---------------------\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );