Klasa liczy 25 uczniów obecnych jest 20 osób ile to procęt???
pliss pomóżcie !!!
25 - 100%
20 - x
x=(20 × 100)÷25 = 80
20 osob to 80%
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25 - 100%
20 - x
x=(20 × 100)÷25 = 80
20 osob to 80%