For a 3-person relay race, a coach can choose from 4 of his top runners.how many different 3- person teams can he choose ? Use the act it out strategy.

I answered that yesterday

http://www.jiskha.com/display.cgi?id=1317248192

thanks!

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To find the number of different 3-person teams the coach can choose from 4 runners, we can use the "act it out" strategy.

1. Step 1: List all the possible teams that can be formed.

Let's label the runners as A, B, C, and D.

Possible teams:
Team 1: A, B, C
Team 2: A, B, D
Team 3: A, C, D
Team 4: B, C, D

2. Step 2: Count the total number of teams.

From the list above, we can see that there are 4 different teams the coach can choose.

Therefore, the coach can choose from 4 different 3-person teams.