chleb wazy30 procent niz wzięta do wypieku mąka.ile wazy chlep upieczony z 5kg mąki?
5/100 = x/130 100x = 650/:100x = 6,5 kgChleb waży 6,5 kg.
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5/100 = x/130
100x = 650/:100
x = 6,5 kg
Chleb waży 6,5 kg.