Question

A retail store offers all television sets at 80%, or , of their original price if the customer buys a store membership for $100. If p is the price of a television set, which expression represents the amount that a new customer will have to pay to get the discount? How much will a $1,500 television cost (including the membership fee) if the customer gets the discounted price?
A.
The expression is , and cost is $1,100.
B.
The expression is , and the cost is $1,200.
C.
The expression is , and the cost is $1,300.
D.
The expression is , and the cost is $1,400.

Answer 1

Answer:

C. The expression is y = 1200x + 100 , and the cost is $1,300.

Step-by-step explanation:

Given :

• Let y be the total cost and x be the number of TVs
• Membership costs $100
• If applied, TV costs 80% of original price

Solving :

• y = 1200x + 100 [given x = 1]
• y = 1200 + 100
• y = 1300
• Total cost is $1300