Question

Chad and Éric left a 20% tip after having lunch at a restaurant.the amount of the tip was $5.Chad’s lunch cost $10.which equation can you use to find x,the cost of Eric’s lunch?

Answer 1

(x + 10) * .2 = 5

Explanation:

The total cost of lunch is Chad plus Éric; therefore, it is (x + 10).

The total tip percent is 20; therefore, (x + 10) * .2 is equal to the tip amount: $5.