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25-04-2020
Mathematics

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How much sand do you need to add to 4 m³ of soil with 50% sand in order to make soil with 80% sand?

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12345678910niko 12345678910niko

25-04-2020

Answer:

6m^3

Step-by-step explanation:

Again with the buckets.

50+100=80

04+ x =4+x

200+100x=320+80x

20x=120

x=6

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