Mrs. chin paid a 20 percent tip on the bill for lunch. if the tip amount was $2.75, what was the bill for lunch before the tip was added to it?

the bill before for the lunch before the tip was $13.75

Step-by-step explanation:

Let bill before for the lunch before the tip was $x.

Now, it has been given that Mrs. chin paid a 20 percent tip on the bill for lunch.

Hence, the equation for the situation is

Now, solve the equation for x

Divide both sides by 0.20

Hence, the bill before for the lunch before the tip was $13.75

chase is right because he already been to the swings and he know how far it will be to get there

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!