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Nikolay [14]
3 years ago
5

A pizza restaurant allows you to choose any 2 of 7 toppings. How many

Mathematics
2 answers:
Helga [31]3 years ago
6 0

Answer: 21 different ways of choosing the toppings

Step-by-step explanation:

Nadusha1986 [10]3 years ago
5 0

Answer:

21

Step-by-step explanation:

You have 7 options for two toppings, to find the numer of combinatios you need to do the following:

\frac{7*6}{2} =\frac{42}{2} =21

this is because you have 7 toppings, so for the first one you are going to choose you have all the 7 options available, then for the second one, since you already picked one, you have 6 options left. This is why you multiply 7*6 =42

and finally divide by 2 to eliminate the duplicates. For example in the 42 options you have both pepperoni with ham, and ham with pepperoni, this are really the same combination just in a different order, so you must divide by two.

The answer is 21 combinations

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