Respuesta :
Answer:
Step-by-step explanation:
x/regular price=y
1-y=discountx100
So, say you get a pair of shoes that are normally $100 and you pay 75. 75/100=.75. 1-.75=.25x100=25. This means you got a 25% discount.
Answer:
First, we have to know the discount percentage.
Let's say that is 20% off, this would be in decimal number 0.20.
Now, if the regular price is [tex]\$X[/tex], then the dollars discounted are
[tex](0.20)(\$X)[/tex]
And the final price is
[tex]\$X-\$0.20X=\$0.80X[/tex]
Which means that the final price is 80% of the regular prices.
Now, for a general case, let's call [tex]Y\%[/tex] the percentage discount, in this case, the final price would be
[tex]\$X-\$(0.Y)X=\$(1-0.Y)X[/tex]
