Mathematics, 20.10.2020 02:01 u8p4
The points C, D, E and F all lie on the same line segment, in that order, such that the ratio of CD : DE : EF is equal to 1 : 5 : 2. If CF = 40, find DF.
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The points C, D, E and F all lie on the same line segment, in that order, such that the ratio of CD...
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