determine which equation will solve the problem. the gratuity on a restaurant bill was $18. if a 20% tip was…

determine which equation will solve the problem. the gratuity on a restaurant bill was $18. if a 20% tip was left, what was the original amount of the bill? to solve, use this equation: dropdown. the original amount of the bill is dropdown.

determine which equation will solve the problem. the gratuity on a restaurant bill was $18. if a 20% tip was left, what was the original amount of the bill? to solve, use this equation: dropdown. the original amount of the bill is dropdown.

Answer

Explanation:

Step1: Set up the equation

Let the original amount of the bill be $x$. We know that the tip (gratuity) is 20% of the original bill, and the tip amount is $18. So the equation is $0.2x = 18$.

Step2: Solve for $x$

Divide both sides of the equation $0.2x = 18$ by 0.2. So $x=\frac{18}{0.2}=90$.

Answer:

The equation is $0.2x = 18$; the original amount of the bill is $90$.