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1 October, 11:42

A submarine is cruising at - 40 meter (40 meters below the surface). It descends 20 1/4 meters; then it rises 15 3/8 meters. What is the submarine's new depth

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  1. 1 October, 12:05
    0
    44.875 must be the answer
  2. 1 October, 12:10
    0
    Decends 20 and 1/4 so going down

    20 and 1/4=20.25

    -40-20.25=-60.25

    then rises (goes up) 15 and 3/8

    15 and 3/8=15.375

    -60.25+15.375=-44.875

    the depth is - 44 and 7/8 meters
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Home » Mathematics » A submarine is cruising at - 40 meter (40 meters below the surface). It descends 20 1/4 meters; then it rises 15 3/8 meters. What is the submarine's new depth
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