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Lê Quốc Trần Anh Coordinator

05/09/2017 at 10:35
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Alicia is framing a rectangular photo that measures 8 inches high by 12 inches wide. However, the frame she has was designed to hold a picture with sides in the ratio 4:5. If the frame Alicia has is the smallest possible frame that holds the photo, how much extra area will there be? Express your answer as a decimal to the nearest tenth.




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    hochiminh 07/09/2017 at 19:47

    Trong chủ đề chúng ta có: Số nguyên từ 1 đến 6 được viết theo chiều ngang trong một hàng sao cho tổng của hai số nguyên kề nhau là số lẻ.

    Vì vậy, sẽ có  3 ⋅ 3 ⋅ 2 ⋅ 2 ⋅ 1 ⋅ 1 = 363⋅3⋅2⋅2⋅1⋅1=36  cách.

     Đáp số : 36 cách


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