Posted by Lindsey on Thursday, September 25, 2008 at 5:30pm.
Your brother pulls his sled up a hill. Each minute he moves forward 20 feet, but he also slides backward 3 feet. Describe how you can determine the time he needs to pull his sled 130 feet forward.

6th grade Math  drwls, Thursday, September 25, 2008 at 5:58pm
Seven forward followed by seven backward steps moves him 17 x 7 = 119 feet forward
The next forward step takes him 20 feet forward to 139 feet 
6th grade Math  Anonymous, Friday, September 26, 2008 at 7:46pm
i need help with math

6th grade Math  PsyDAG, Saturday, September 27, 2008 at 12:31am
First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.
Second, state in detail the specific problem(s) that is/are giving you trouble.
I hope this helps. Thanks for asking.