A store is going out of business. Everything is marked down 40%. How much do you pay now for an item that used to cost $150? Explain how you got your answer.

You would pay $90 now for an item that used to cost $150.

Step-by-step explanation:

Here's how I thought of it. There are two ways to solve this problem.

Because we know that the item is discounted by 40%, that leaves 60% of its price left. (100% price - 40% price = 60% price).

Thus, you would multiply $150 by 0.6 (or, 60% in decimal form), which equals $90.

Alternatively, you could also multiply $150 by 0.4 and just subtract what you get from the total. That number is 60, and $150 - $60 = $90.

Use whichever way makes more sense to you!

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square