Jerry left a ​$5.40 tip on a meal that cost ​$30 . what percent of the​ meal's cost was the​ tip? what was the total cost of the meal including the​ tip?

Mathematics · High School · Tue Nov 03 2020

Answered on

To solve for the percentage of the meal's cost was the tip, divide amount of tip over the cost of meal times 100 and add % sign to get the percentage. Since the tip was ​$5.40 and the meal costs $30, divide $5.40 by $30 then times 100 and add % sign.
> ​$5.4/$30 x100
> 0.18 x100
> 18 or 18%.
The tip was 18% of the meal's cost.

To calculate the total cost of the meal including the tip, add the cost of meal plus the amount of tip given. Since the tip was ​$5.40 and the meal costs $30, add $5.40 and $30 to get the total cost of the meal including the​ tip.
>  $5.40 +$30
> $35.40
The total cost of the meal including the​ tip was $35.40.