Question

Maria bought a stock for x dollars, and she sold it at a profit of 20 %. Write a mathematical expression for the selling price.
120x
1.2x
0.12x
12x

Answer 1

To find the selling price of a stock that Maria sold at a profit of 20%, we can use the following formula:

Selling Price = Cost Price + Profit

In this case, the profit is 20% of the cost price (which is \( x \)). So the profit can be expressed as:

Profit = 20% of \( x \) = 0.2 \( x \)

Now, we can find the selling price:

Selling Price = \( x + 0.2x = 1.2x \)

So the correct expression for the selling price is:

**1.2x**.