Mathematics: Mr.lewis is going on a trip.he has 11 books that he hasn t read yet,but he wants to bring only 2 on the trip.in how many ways can he choose 2 books to bring on the trip?

Mr.lewis is going on a trip.he has 11 books that

Ответ:

madisonweber2001

02.06.2020

Step-by-step explanation:you answer is 55 any other help look up a Permutations and Combinations or spam me and ill help again correction you and multiply the 11 by 10 first then divide by 2 you will still get 55.

Mr.lewis is going on a trip.he has 11 books that he hasn't read yet,but he wants to bring only 2 on

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Ответ:

keesbre

24.09.2021

Mathematics

Set x as the smaller number and y as the bigger one.
x+y=43
y-11=x

Solve by substitution:
y-11+y=43
2y-11=43
2y=54
y=27
27-11=16
x=16

The numbers are: 27 and 16

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Mr.lewis is going on a trip.he has 11 books that he hasn't read yet,but he wants to bring only 2 on the trip.in how many ways can he choose 2 books to bring on the trip?

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