Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
gdogthegirl
Group Title
Help please!? The sales tax on a new car varies directly to(or is directly proportional) the price of the car. If $1,800 in sales tax is paid for a $25,000 car. what is the purchase price of a car worth $1,600 in sales tax? Im totally lost when it comes to variations :(
 2 years ago
 2 years ago
gdogthegirl Group Title
Help please!? The sales tax on a new car varies directly to(or is directly proportional) the price of the car. If $1,800 in sales tax is paid for a $25,000 car. what is the purchase price of a car worth $1,600 in sales tax? Im totally lost when it comes to variations :(
 2 years ago
 2 years ago

This Question is Closed

gdogthegirl Group TitleBest ResponseYou've already chosen the best response.0
could you show the steps too?
 2 years ago

tcarroll010 Group TitleBest ResponseYou've already chosen the best response.0
It's a question in proportions. 1800 is to 25000 as 1600 is to x. Are you with me so far?
 2 years ago

gdogthegirl Group TitleBest ResponseYou've already chosen the best response.0
but im not supposed to use proportions
 2 years ago

gdogthegirl Group TitleBest ResponseYou've already chosen the best response.0
its for variations like this is a direct variation
 2 years ago

tcarroll010 Group TitleBest ResponseYou've already chosen the best response.0
"varies directly" is the same as proportions. You will use an equation like a/b = c/x.
 2 years ago

tcarroll010 Group TitleBest ResponseYou've already chosen the best response.0
1800 = a. 25000 = b. 1600 = c. Just get x
 2 years ago

li_za12 Group TitleBest ResponseYou've already chosen the best response.0
25000/1800 = x/1600 25000/1800 = 13.89 1800 x 13.89 = 25 1600 x 13.89 = x
 2 years ago

gdogthegirl Group TitleBest ResponseYou've already chosen the best response.0
the equation they gave to use to use was y=kx ^{n} \]
 2 years ago

gdogthegirl Group TitleBest ResponseYou've already chosen the best response.0
y=kx squared to n
 2 years ago

tcarroll010 Group TitleBest ResponseYou've already chosen the best response.0
What is your value for k?
 2 years ago

gdogthegirl Group TitleBest ResponseYou've already chosen the best response.0
that what i dont know
 2 years ago
See more questions >>>
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.