Respuesta :

KONSETON
4$-20%
X$-100%

X=4·100:20=400:20=20

Answer : He paid for the meal 20$.
Kmieteczka
x - the price for the meal

[tex]20\%\cdot x=$4[/tex]
[tex]0,2x=$4\quad \|:0,2[/tex]
[tex]x=$20[/tex]

The meal cost Roman $20.

:)

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