Question

Frankie and Johnny left a 15% tip after having dinner at a restaurant. The amount of the tip was $8 frankie’s dinner costs $15 which equation can you use to find x, the cost of johnnys dinner

Answer 1

=> 0.15(x + $15) = $8

Explanation:

Combined Tip = 15% = 0.15 = $8

Meal Price = 100% = 1.00

Meal Price = Frankie's Dinner + Johnny's Dinner

(Frankie's Dinner & Johnny's Dinner) = x + $15

15% of Meal Price = 15% (Frankie's Dinner & Johnny's Dinner)

=> 0.15(x + $15) = $8

x + $15= ($8/0.15)

x = ($53.33) - $ 15 = $38.33

Answer 2

Explanation:

So first let's look at an explanation example:

Many applications of percent occur in our daily lives, such as tips, sales tax, discount, and interest. To solve these applications we’ll translate to a basic percent equation, just like those we solved in the previous examples in this section. Once you translate the sentence into a percent equation, you know how to solve it.

Let’s start by looking at a common application of percent—tips to a server at a restaurant—to see how to set up a basic percent application.

Similarly, in this way, the answer would be in this case first: we can do 100 divided by 8 because 8 percent to get 12.5. With that, we can multiply or divide based on the question to get the total cost or tip.