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22 May, 10:42

At the bank brent exchanges $50 in bills for 50 one-dollars coins. the total mass of the coins is 405 grams. estimate the mass of 1 one - dollar coin.

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Answers (2)
  1. 22 May, 13:15
    0
    8 as you round up 405 to 400 and divide by 50 and get 8
  2. 22 May, 13:47
    0
    The mass of each coin will be 8.1
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