Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

kausarsalleyBest ResponseYou've already chosen the best response.0
http://www.icoachmath.com/problems/solution.aspx?Qversid=fqLF3Cf96cQ=#
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
if y varies directly with x then y = kx where k is a constant find k by plugging in the given values of y and x when y = 3 , x = 2 3 = k * 2 can you find k?
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
divide both sides of the equation by 2 to find k right
 one year ago

kevincourtesBest ResponseYou've already chosen the best response.0
@cwrw238 so the answers D right?
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
so now we have dw:1366501494754:dw
 one year ago

kevincourtesBest ResponseYou've already chosen the best response.0
@cwrw238 can you help me with this one?
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
can u see what i've done i've substituted 3/2 for k now to find y when x = 3 plug in 3 for x and work out the value of y
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
if y varies directly by x y = kx and k = y/x
 one year ago

kevincourtesBest ResponseYou've already chosen the best response.0
@cwrw238 i dont understand the 2nd problem
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
now plug in the values of x and y y = 3 and x = 1 k = 3 / 1 = 3 y = 9 and x = 3 k = 9/3 = 3 also k = 15 / 5 = 3 so is this varying direct;y?
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
these values of y and x do satisfy the relation y = kx which is direct variation do you see that?
 one year ago

kevincourtesBest ResponseYou've already chosen the best response.0
@cwrw238 ohhhh okay so the answer would be A?
 one year ago

cwrw238Best ResponseYou've already chosen the best response.2
right there are 2 types of variation direct where y = kx and indirect where y = k / x
 one year ago

kevincourtesBest ResponseYou've already chosen the best response.0
@cwrw238 also can you help me with this last one?
 one year 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.