document.write( "Question 469003: A spider drops from the ceiling of Linda's porch and then climbs back up its web to its web to the ceiling. The speed on the trip down is 0.45 ft/sec, and the speed back up is 0.15 ft/sec. If the round trip took 80 seconds, how high is the ceiling? \n" ); document.write( "
Algebra.Com's Answer #321776 by jorel1380(3719)\"\" \"About 
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n/.45+n/.15=80
\n" ); document.write( ".15n+.45n=5.4
\n" ); document.write( "15n+45n=540
\n" ); document.write( "60n=540
\n" ); document.write( "n=9 ft. to the ceiling..
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