Question

If x and y vary inversely as each other and x = 210 when y = 6 find y when x =15​

Answer 1

Answer:

84

Step-by-step explanation:

When two numbers x and y are in inverse proportion, their product is any constant value k.

That is, when x∞1/y, xy =k

Here, when x is 210, y is 6

That is, xy or 210*6 is a constant k

So, k is 1260.

Now, when x is 15, y will be 1260/15 (since the constant for x times y in this case is 1260 and we need to find y)

So, the value of y is 1260/15 = 84.

Therefore, the value of y when x is 15 is 84.

Hope it helped you!