Question

Ex 9 va rog va dau coroana (daca pot :) )

Answer 1

Exercițiul 9 :


9 cutii bomboane ... 3 cutii napolitane ... 75 lei | × 4

6 cutii bomboane ... 12 cutii napolitane ... 180 lei

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1 cutie bomboane = ? lei

1 cutie napolitane = ? lei

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36 cutii bomboane ... 12 cutii napolitane ... 300 lei
..........………………….………-………………..........................

6 cutii bomboane ... 12 cutii napolitane ... 180 lei | : 6

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30 cutii bomboane ... / ... 120 lei

1 cutie bomboane = 120 : 30

→ 1 cutie bomboane = 4 lei

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1 cutie bomboane ... 2 cutii napolitane ... 30 lei

4 lei ... 2 cutii napolitane ... 30 lei

2 cutii napolitane = 30 - 4

2 cutii napolitane = 26 lei

1 cutie napolitane = 26 : 2

→ 1 cutie napolitane = 13 lei