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x%din140=28 repede pls​

Răspuns :

Răspuns:

[tex]x/100*140=28\\\\140x=28*100\\\\x=2800:140\\\\x=20[/tex]

Răspuns:

x/100 × 140=28

140x/100=28

28 il amplificam cu 100 si vom avea 100×28=2800

=> 140x/100=2800/100

=>140x=2800

=>x=2800÷140

=>x=20%