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24 February, 00:10

A 400 meter wire is cut into three pieces. The second piece is 3 times as long as the first piece. The third piece is 2 times as long as the second piece. How long is each piece?

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Answers (2)
  1. 24 February, 01:12
    0
    first piece = 66.67m

    second = 200m

    third = 133.33m

    Step-by-step explanation:

    With the data that gives us the problem we can perform 3 equations

    a: first piece

    b: second piece

    c: third piece

    a + b + c = 400

    b = 3a

    c = 2a

    we replace the value of b and the value of c in the first equation

    a + (3a) + (2a) = 400

    6a = 400

    a = 400/6

    a = 66.67m

    Now we go to the second and third equations and replace the value of a

    b = 3a

    b = 3 (66.67)

    b = 200

    c = 2a

    c = 2 (66.67)

    c = 133.33
  2. 24 February, 04:01
    0
    first = 66.67m

    second = 200m

    third = 133.33m
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