Apples 2

Dried apples contain 15% water. Fresh apples contain 80% water. How many kg of apples we need buy in order to get 3 kg of dried apples?

Result

x =  12.75 kg

Solution:

0.20 x = 0.85 y
y = 3

0.2x-0.85y = 0
y = 3

x = 514 = 12.75
y = 3

Calculated by our linear equations calculator.

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