Answer:
4
Step-by-step explanation:
Given :
5c+cd where, and d=15
Now,
5×
=1+3
=4
Answer is 4
Erik read a total of 4 books over 2 months. After belonging to the book club for 17 months, how many books will Erik have read i
1 answer:
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Answer: 120
Step-by-step explanation:
Given : The league championship 800 meter race has 6 runners.
The number of positions = 3
Since order matters here , so we use Permutation.
The permutation of n things taking r at a time is given by :-
Then, the number of different ways they place first, second, and third :_
Hence, they can place first, second, and third in 120 different ways .
