Bunuel wrote:

After receiving a 25% discount, Amanda pays $240 for a TV. How much would the TV cost without the discount?

A. $180

B. $300

C. $320

D. $360

E. $400

Let x = the original price (BEFORE the discount)

If Amanda received a 25% discount, then she paid 75% of the original price.

In other words, she paid 75% of x

We're told she paid $240, so we can write: 75% of x = $240

Or we can write: 0.75x = 240

ASIDE: One approach here is to divide both sides by 0.75, but this can be a pain for many students.

Another option is to convert 0.75 to a fraction, and then go from there.

Here's what I mean.

We get: (3/4)x = 240

Multiply both sides by

4/3 to get: (

4/3)(3/4)x = (

4/3)240

Simplify: x = 320

Answer: C

Cheers,

Brent

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