Question

The regular price of an item at a store is p dollars. The item is on sale for 20% off the regular price. Some of the expressions shown below represent the sale price, in dollars, of the item.

Answer 1

Question is Incomplete complete question is given below;

The regular price of an item at a store is p dollars. The item is on sale for 20% off the regular price. Some of the expressions shown below represent the sale price, in dollars, of the item.

$Expression\ A: 0.2p \\\\Expression\ B: 0.8p\\\\Expression\ C:1 - 0.2p\\ \\Expression\ D: p - 0.2p \\\\Expression\ E: p - 0.8p$

Which two expressions each represent the sale price of the item?

Answer:

Expression B: $0.8p$

Expression D: $p - 0.2p$

Step-by-step explanation:

Given:

regular price of the item = p dollars

item is on discount of = 20%

We need to find the expression represent the sale price of the item.

Solution:

First we will find the discounted price.

Discounted price is equal to percent discount multiplied by regular price and then divided by 100.

framing in equation form we get;

Discounted price = $\frac{20}{100}\times p =0.2p$

Now we can say that;

Sale price is equal to regular price minus discounted price .

framing in equation form we get;

Sale Price = $p-0.2p$

This is one of expression represent the sale price of the item.

On solving above expression we get;

Sale Price = $p(1-0.2)$

Sale Price = $0.8p$

This is Another expression represent the sale price of the item.

Answer 2

Answer: The answer is : A and B