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math (distance problem)

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The points A, B, C, D, and E are located on a straight line in order. The distance from A to E is 20cm. The distance from A to D is 15cm. The distance from B to E is 10cm. C is halfway between B and D. Find the distance from A to C.: *
2.5 cm
5 cm
10 cm
12.5 cm

  • math (distance problem) - ,

    Draw a sketch and think it through, one statement at a time.
    The first tells you that the total length is 20 cm.
    The second tells you that D is 5 cm from the the right end (E).
    The third tells you that B is 10 cm from each end (and in the middle). The fourth tells you where to put C

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