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18-09-2019
Mathematics

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If 45 mL of H2O are required to mix 100 g of casting plaster, how many milliliters would you need for 250 g of plaster ?

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carolynlin931113 carolynlin931113

18-09-2019

Answer is 112.5 mL

You add 45 and another 45 to get 90 mL for 200g, and divide 45 by 2 to get 22.5 for the 50g left and you add all up 90+22.5=112.5

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