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vovangra [49]
3 years ago
12

The ice cream shop has 7 types of toppings available, and you decide to add 4 toppings to your bowl of 5 scoops of ice cream. Ho

w many combinations of 5 scoops of ice cream and 4 toppings are possible
Mathematics
1 answer:
Slav-nsk [51]3 years ago
6 0

Answer: 35

Step-by-step explanation:

The number of combinations of r things selected out of n things is given by

^nC_r= \dfrac{n!}{r!(n-r)!}

Given , the total number of types of toppings available = 7

The number of toppings needed to be selected = 4

Then, the number of ways to do this would be

^7C_4=\dfrac{7!}{4!(7-4)!}\\\\=\dfrac{7\times6\times5\times4!}{4!3!}\\\\=\dfrac{7\times5}{1}=35

Hence, the number of combinations of 5 scoops of ice cream and 4 toppings are possible = 35.

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Hello there! 

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For the fractions you can simplify it make it easier for you to solve these types of problems

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