Question

A store advertises skirts for x-5 dollars and allows an additional two dollar reduction on each skirt if three or more skirts are purchased. Represent the cost of five skirts.

a) 5x + 5
b) 5(x - 7)
c) 5(x - 7) - 2
d) 5(x - 5) + 2

Answer 1

The cost of five skirts can be represented by the expression 5(x - 7).

Step-by-step explanation:

The cost of five skirts can be calculated as follows:

1. The original cost of one skirt is x-5 dollars.
2. If three or more skirts are purchased, there is an additional two dollar reduction on each skirt.
3. Therefore, the cost of each skirt, if three or more skirts are purchased, is (x-5) - 2 dollars.
4. Thus, the total cost of five skirts would be 5 * ((x-5) - 2) dollars.

Therefore, the correct representation of the cost of five skirts is 5 * ((x-5) - 2), which simplifies to 5(x-7). Hence, the answer is option b) 5(x - 7).