Question

roman ate at a restaurant and gave the waiter a $4 tip. The tip was 20% of the meal. How much was the meal?

Answer 1

4$-20%
X$-100%

X=4·100:20=400:20=20

Answer : He paid for the meal 20$.

Answer 2

x - the price for the meal

$20\%\cdot x= 4$
$0,2x= 4\quad \|:0,2$
$x= 20$

The meal cost Roman $20.

:)