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makkiz [27]
3 years ago
6

1) Which is the best buy? 6 shirts for $25.50 4 shirts for $18.00 5 shirts for $21

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
6 0

Answer:

5 shirts for $21

Step-by-step explanation:

25.50÷6= 4.25

18.00÷4= 4.50

21.00÷5= 4.20

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Answer: 8008

Step-by-step explanation:

Total entrees = 16

Number of entrees to choose = 6

Since order does not matter , so we combinations .

Number of combinations to choose r things out of n = C(n,r)=\dfrac{n!}{r!(n-r)!}

Then, total ways to choose 6 entrees = C(16,6)=\dfrac{16!}{6!10!}

=\dfrac{16\times15\times14\times13\times12\times11\times10!}{(720)10!}\\\\= 8008

Hence, the required number of ways= 8008

4 0
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