Question

The original cost of a new bike is $210. All bikes are on sale for 30% off. The sales tax is 5.5%. What is an expression that correctly represents the total cost of the dress? Please choose the correct expression from the options.

A. (210) (0.7) (1.055)
B. (210) (0.3) (0.55)
C. (210) (0.3) (5.5)
D. (5.5) (0.07) (210)

Answer 1

To find the total cost of the bike, multiply the original cost by (1 - discount percentage), then calculate the sales tax amount by multiplying the discounted price by the sales tax rate, and finally find the total cost by adding the discounted price and the sales tax amount.

Step-by-step explanation:

To find the total cost of the bike, we need to consider the discount and sales tax. First, we calculate the discounted price by multiplying the original cost by (1 - discount percentage).

Discounted price = $210 x (1 - 0.30) = $147

Next, we calculate the sales tax amount by multiplying the discounted price by the sales tax rate.

Sales tax amount = $147 x 0.055 = $8.085

Finally, we find the total cost by adding the discounted price and the sales tax amount.

Total cost = Discounted price + Sales tax amount = $147 + $8.085 = $155.085