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Ann [662]
3 years ago
14

Two variables, x and y, vary inversely, and x=12 when y=4. What is the value of y when x=3?

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
5 0

Hey there! Thanks for asking your question here on Brainly!

For this sort of problem, we'll use the equation y = k/x, which is for inverse variations. First, we'll need to solve for k.


4 = k/12

k = 48


Next, we'll need to plug k into our equation from the beginning, as well as 3 for x in order to solve for y.


y = 48/x

y = 48/3

y = 16


Therefore, your answer is y = 16.


Hope this helps!! :)


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Let the required number is 2x ,





According to the condition,



➡ 10 times the sum of half of 2x and 6 = 8

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<span>We are interested in the recursive formula now

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The common ratio is (20/-80)=(-5/20)=-1/4=-0.25

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I hope that helps!



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