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anonymous
 4 years ago
True or False? Y varies directly with x and y = 9 when x = 3. When y = 27, the value of x is 9. someone PLEASE explain...:(
anonymous
 4 years ago
True or False? Y varies directly with x and y = 9 when x = 3. When y = 27, the value of x is 9. someone PLEASE explain...:(

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aripotta
 4 years ago
Best ResponseYou've already chosen the best response.1"y varies directly with x" is y = kx. we have to find out what k is. so we substitute 9 for y and 3 for x. 9 = 3k. can you tell me what k equals?

aripotta
 4 years ago
Best ResponseYou've already chosen the best response.1yep. so now we can substitute 3 for k and 27 for y to see if x equals 9. 27 = 3x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0no x=3 it says so in the prob

aripotta
 4 years ago
Best ResponseYou've already chosen the best response.1no, that says when x = 3, y = 9. y and x can be any number. k is the only variable that is constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok sso its false though?

aripotta
 4 years ago
Best ResponseYou've already chosen the best response.1why do you think it's false? are you just guessing? :/

aripotta
 4 years ago
Best ResponseYou've already chosen the best response.1or did you do the math

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i did the math 9=3k so 9/3=3k/3 k=3 right o9r am i totaolly off?

aripotta
 4 years ago
Best ResponseYou've already chosen the best response.1yea, k = 3, but we're trying to find out what x equals when y = 27

aripotta
 4 years ago
Best ResponseYou've already chosen the best response.1yes! which is not 9. so it's false. good job :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0EmmaH, k=3. So, now you substitute it in to check what x is when y=27 27=(3)x x=9 Therefore, it is false.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Sorry I just realised I came in a little too late

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0thanks guys...wait are you both guys right?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I'm a girl :D But close enough!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0hu ....but thanks anyways

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0lolo thats a way of saying it :)
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