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December 20, 2014

December 20, 2014

Posted by **Dezy** on Tuesday, December 2, 2008 at 10:08pm.

HINT: the answer is not 15

- math -
**DrBob222**, Tuesday, December 2, 2008 at 10:21pmWe make 3 cuts to get 4 pieces.

We must make 4 cuts to get 5 pieces.

Set up a proportion.

(3cuts/12 s) = (4 cuts/? s)

Cross multiply

3cuts * ?seconds = 48

? sec = 48/3 = 16 seconds.

Check my thinking. Check my work.

- math -
**Ms. Sue**, Tuesday, December 2, 2008 at 10:23pmTo cut the log into 4 pieces takes 3 cuts. Each cut averages 4 seconds.

To cut the log into 5 pieces takes 4 cuts. How long do you think it will take to make 4 cuts?

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