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grigory [225]
3 years ago
14

a ballroom is being set up for a banquet in one room there are 7 tables and 56 chairs how many tables should be set up for 40 ch

airs
Mathematics
2 answers:
aliina [53]3 years ago
6 0
8 chairs per table so 5 tables for 40 chairs
Jobisdone [24]3 years ago
4 0

Answer:

points

Step-by-step explanation:

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In a cohort of 35 graduating students, there are three different prizes to be awarded. If no student can receive more than one p
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We have been given in a cohort of 35 graduating students, there are three different prizes to be awarded. We are asked that in how many different ways could the prizes be awarded, if no student can receive more than one prize.

To solve this problem we will use permutations.

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We know that formula for permutations is given as

_{r}^{n}\textrm{P}=\frac{n!}{(n-r)!}

On substituting the given values in the formula we get,

{_{3}^{35}\textrm{P}}=\frac{35!}{(35-3)!}=\frac{35!}{32!}

=\frac{35\cdot 34\cdot 33\cdot 32!}{32!}\\
\\
=35\cdot 34\cdot 33=39270

Therefore, there are 39270 ways in which prizes can be awarded.


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