Question

Rick buys remote control cars to resell. He applies a markup of 18%. Enter two expressions that represent the retail price of the cars. Use P to represent the original price of the remote control cars.

a. P + 18%
b. 1.18P
c. P + 0.18P
d. 1.18

Answer 1

The retail price after an 18% markup can be expressed using either 1.18P or P + 0.18P, which both add 18% to the original price represented by P.

Step-by-step explanation:

The student's question pertains to the calculations of retail price after applying a markup. Rick buys remote control cars at an original price P and applies a markup of 18%. There are two correct expressions that can represent the retail price of the cars after applying this markup.

• P + 0.18P: This expression adds 18% of the original price to the original price itself.
• 1.18P: The '1' represents the original price fully, and '0.18' represents the 18% markup. Multiplying the original price by 1.18 gives the final retail price, including the markup.

Both expressions b. 1.18P and c. P + 0.18P correctly represent the retail price with an 18% markup over the original price P.