# If y varies inversely as x and y = 12 when x = 3, how do you find x when y = 18?

To find x when y = 18, we can use the inverse variation formula: y = k/x.

First, we need to find the value of k, which is the constant of variation.

Given that y = 12 when x = 3, we can substitute these values into the formula: 12 = k/3.

To solve for k, we can multiply both sides of the equation by 3: 36 = k.

Now that we know the value of k, we can substitute it into the formula: 18 = 36/x.

To solve for x, we can multiply both sides of the equation by x: 18x = 36.

Finally, we divide both sides of the equation by 18 to isolate x: x = 2.

Therefore, when y = 18, x = 2.

By signing up, you agree to our Terms of Service and Privacy Policy

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- How do you solve #(3x)/(x+1) = (3x-2)/(x+2)#?
- How do you subtract #\frac { 4} { 2r ^ { 4} s ^ { 5} } - \frac { 5} { 9r ^ { 3} s ^ { 7} }#?
- How do you divide #(t^2-16)/(t^2-8t+16)#?
- If y varies indirectly as the cube of x, and k is the constant variation, how do you find the equation to describe this relationship?
- How do you find the quotient of #(8a^2+20a)div4a#?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7