An avid reader has fifteen new books, of which nine are novels and six are biographies. They are packing for a holiday and choosing some books to take with them. a) How many different choices of books could they make if they decide to take four novels and two biographies? b) How many different choices of books are if they decide to take five books that include at least one biography?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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An avid reader has fifteen new books, of which nine are
novels and six are biographies. They are packing for a holiday and
choosing some books to take with them.
a) How many different choices of books could they make if they
decide to take four novels and two biographies?
b) How many different choices of books are if they decide to take
five books that include at least one biography?
Transcribed Image Text:An avid reader has fifteen new books, of which nine are novels and six are biographies. They are packing for a holiday and choosing some books to take with them. a) How many different choices of books could they make if they decide to take four novels and two biographies? b) How many different choices of books are if they decide to take five books that include at least one biography?
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