If the sale price is $50, and the sale is 20% off, that means the $50 represents the other 80% of the regular price—the part that you do pay. So then we ask ourselves, okay, $50 is 80 percent of... what? In math speak, that would be written as

$50(is)80%(of)(regular price)

$50=80% × r

Solving this for r, we get

r=$5080%

We remind ourselves that the "percentage" symbol is just a shorthand for "divide this number by 100." The equation becomes

r=$5080/100=$500.8=$62.50

So the regular price is $62.50.

Bonus:

A general formula can be used for any regular price r, any percent discount p, and any sale price s:

p%off of reg.price is sale price

(100−p)%× r = s

As long as we know two of the three variables {p,r,s}, we can solve for the third one.

Learn more : brainly.com/question/tcs1299821

4 0

3 years ago

Read 2 more answers

What is the definition of the image of a point

Montano1993 [528]

The point whose depth below ground zero is equal to the height of a hydrogen bond. I don't think this should be a math question lol

4 0

4 years ago

Brandon wrote a decimal number one of the digits in the number was a 6 that had a bag of 6 * 1/10 which could be the decimal num

pshichka [43]

Answer:

0.6

Step-by-step explanation:

Given that:

One of the decimal figure that Brandon wrote is 6; this particular 6 we are talking about contains a bag of $6\times \dfrac{1}{10}$ that has the possibility of becoming the decimal number he wrote; to find that decimal number:

Then;

$= 6\times \dfrac{1}{10}$

$=\dfrac{6}{10}$

$\mathbf{= 0.6}$

5 0

3 years ago