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anonymous
 3 years ago
given y varies directly as x, and y=9 when x=3. Find y when x=11
anonymous
 3 years ago
given y varies directly as x, and y=9 when x=3. Find y when x=11

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0y = ax 9 = a3 so a = 3 y = 3x y = (3)(11)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0So, y would equal 33.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Good luck to you in all of your studies and thx for the recognition! @lvasquev462

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0i have one more of these questions

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0given y varies directly as x and y=4 when x=20. Find x when y=6

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0y = ax 4 = a(20) a = (1/5) y = (1/5)x x = 5y x = (5)(6) = 30

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0So, all I did was basically the same thing, but the only twist here is that I flipped the "x" and "y". See that?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0So, with these "varying directly" problems, you can start out the same way in both cases. Nice working with you!
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