Homework Help: math

Posted by ewi on Wednesday, January 20, 2010 at 1:46am.

A worm is at the bottom of a 12- foot wall. Every day it crawls up 3 feet, but at night it slips down 2 feet. How many days does it take the worm to reach the top of the wall?

math - drwls, Wednesday, January 20, 2010 at 7:28am
It rises a net distance of 1 feet per day. After nine days it has risen nine feet. What happens on the tenth day?
math - Alex, Wednesday, March 2, 2011 at 8:17pm
Eleven days.

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