For this case we can raise a rule of three based on Anthony trotting miles in 23 minutes.
miles -----------> 23 minutes
x ----------------------------------------> 1minute
ANswer:
0.5 miles per minute
Doug collects baseball and football cards. He has 5 baseball cards in his collection for every 4 football cards. If Doug has 68
1 answer:
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Answer:
90 different ways
Step-by-step explanation:
We have a total of 10 members, and we want to find how many groups of 2 members we can have, where the order of each member in the group of 2 is important, so we have a permutation problem.
To solve this problem, we need to calculate a permutation of 10 choose 2.
The formula for a permutation of n choose p is:
So we have:
So there are 90 different ways of choosing a president and a vice-president.