A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
The sales price of a car is $12,590, which is 20% off the original price. What is the original price? please explain it to me
anonymous
 5 years ago
The sales price of a car is $12,590, which is 20% off the original price. What is the original price? please explain it to me

This Question is Closed

nowhereman
 5 years ago
Best ResponseYou've already chosen the best response.0Let the original price be denoted by x, then write down the function x ↦ $12590, that takes original prices and returns the sales price. Then you only need to invert it.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok and how would i do that math is my weakest subject its like disease that i cnt fight

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i didn't quite get the q so taking ur q as 12590 being the sale price with a 20% discount, x0.2x=0.8x=12590 x=12590/0.8=15737.5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, let me start from the beginning

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sales price (100% minus the 20% sales = 80% of the original)= $12590 original price (100%) = \[sales price \div 80 * 100\] = 12590/80*100 = 15737.50$

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0this works like this: you know the price after a 20% off, which means the sales price you know is 80% of the original price. So to find the original price, you have to divide the sales price by 80 (to find how much $ is for each %), and then multiply by 100 so you get the total 100% price

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea but quick question

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.012590 = original price  original price(%) 12590 = P  P(20%) change 20% to its decimal form (.20) 12590 = P(1  .20) P = 12590/(1.20)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0amistres64 how did you get one for this problem when you said (1.20)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0It is a technique used to "factor out" a variable. Lets use P =10 and the % =3 as an easy example: just replace them with numbers: 10(1)  10(3) we can easily find the value of this; 10  30 = 20 right? We can also solve this by "factoring out" the thing they have in common and turning it into a multiplication problem like this: 10 (13) which is 10(2) = 20, same answer. Just remember that there is an "invisible" or "implied" (1) next to all variables and numbers; why? because anything times (1) equals itself. Does this make sense?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0In other words: P(1)  P(.20) factors out to be: P(1.20)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes thank you ... you helped a lot

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so when you say 12590/(1.20) are you telling me to divide or multiply before i subtract

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.012590 divided by (1.20)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok thank you so so so so much your a lifesaver
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.