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4 December, 01:30

480kg into the ratio 1:3:4

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Answers (2)
  1. 4 December, 04:08
    0
    To develop a molecular clock, you need to find which of the following?

    a sequence of molecules

    the rate at which changes occur in a type of molecule

    how much total change has occurred in a type of molecule from two different species

    how many molecules a species has

    Step-by-step explanation:

    dsk'fa
  2. 4 December, 04:12
    0
    x = 60

    Step-by-step explanation:

    cement: 1x = 60kg

    sand : 3x = 3*60 = 180kg

    gravel : 4x = 4*60 = 240kg
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