Question

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds.

On your last visit to the dentist, 22cavities were found.

What was the cost of your visit?

Answer 1

The cost of the visit to the dentist is:

• $250.

Explanation:

When using the formula provided in the exercise:

• Dentist visit cost = 50 + 100n

Where n is the number of cavities found, you simply must replace the number provided by the exercise, instead of the letter n, since it is mentioned that 2 cavities were found, it is replaced as shown below:

• Dentist visit cost = 50 + 100 (2)

So first you multiply and then add:

• Dentist visit cost = 50 + 200
• Dentist visit cost = 250

Therefore, the cost of the visit is $250.

Answer 2

The cost of the dentist visit is $250

Explanation:

The formula for the cost of the dentist visit is given by

c(n) =50+100n where n is the number of cavities

Let n =2 and substitute in

c(2) =50+100(2)

= 50 + 200

c(2) = 250

The cost of the dentist visit is $250

Brush your teeth!