Question

1 .
mp=200g
mimp=20g
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mi=?
p=?
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2 .
p=80%
mi=720kg
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mp=?
mimp=?
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​

Answer 1

Răspuns:

p = mp × 100 / mi

mi = mp + m(imp.)

1.

mi = mp + m(imp.) = 200g + 20g = 220g

p = mp × 100 / mi = 200g × 100 / 220g = 90,90%

2.

mp = p × mi / 100 = 80 × 720 kg / 100 = 576 kg

m(imp.) = mi - mp = 720 kg - 576 kg = 144 kg

-Mihai