Mathematics, 28.05.2020 20:05 jocelyn7575

Susan's father is 5 times older than susan right now and in 3 years he will be 4 times older then her How old is suan right now.

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Mathematics, 21.06.2019 17:00, cooboy

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Mathematics, 21.06.2019 19:00, libi052207

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Mathematics, 21.06.2019 19:00, ale1910

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

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Susan's father is 5 times older than susan right now and in 3 years he will be 4 times older then he...