SOLUTION: I have never done a problem such as the following, and my book isn't helping. My answer must be a whole number. Let U = {x | x is the name of one of the months in a year} J =

Question 1049081: I have never done a problem such as the following, and my book isn't helping. My answer must be a whole number.
Let
U = {x | x is the name of one of the months in a year}
J = {x | x is in U and x begins with the letter J}
Y = {x | x is in U and x ends with the letter Y}.
Find n(J ∪ Y).
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Make a list of all of the months of the year that have a letter "J" as the first letter of the month name. This is a listing of set J.

Make a list of all of the months of the year that have a letter "Y" as the last letter. This is a listing of set Y.

Combine the two lists so that if a month name occurs in both lists, that month name only occurs once in the combined list. This is the union of set J and Y.

Count the number of elements in the union set. That's your answer.

John

My calculator said it, I believe it, that settles it

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