biennhan7152 biennhan7152
  • 13-09-2019
  • Mathematics
contestada

At a restaurant a menu has 5 salads and 6 entrees. How many ways can you order a dinner that contains 1 salad and 1 entree?

Respuesta :

JeanaShupp
JeanaShupp JeanaShupp
  • 16-09-2019

Answer:  30

Step-by-step explanation:

The combination of n things taking r at a time is given by :-

[tex]^nC_r=\dfrac{n!}{r!(n-r)!}[/tex]

Given : At a restaurant a menu has 5 salads and 6 entrees.

Then, the number of ways you can order a dinner that contains 1 salad and 1 entree will be :_

[tex]^5C_1\times ^6C_1\\\\=5\times6=30[/tex]

Hence, the number of ways you can order a dinner that contains 1 salad and 1 entree = 30

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