Pre-Algebra (check my answer)

5. Dave has work shirts in 5 different colors. He works three days each week. How many possible arrangements are there for the shirts each week?

A. 15
B. 60
C.120*
D.125

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  1. Can someone please help me.

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  2. nevermind it is 60....

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  3. Order matters... once he has worn a shirt it is used up for the week.
    so... if the slots represent the days of the week _____ x ______ x ______
    In the first slot (the first day of the week), he has 5 choices
    = __5 __ x ___ x ___
    but then that shirt is used up so the second day he only has 4 choices
    = 5 x 4 x ___ then that shirt is used up, so the final day of the week that he works he only has three choices
    = 5 x 4 x 3
    = ...

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  4. You are correct : )

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  5. At least answer the question, it’s 60

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