Question

If x and y vary inversely and x = 25, when y = 3 find y when x = 15.​

Answer 1

Answer:

The value of y=5 when x=15.

Step-by-step explanation:

Given : If x and y vary inversely and x= 25, when y= 3.

To Find : The value of y, when x=15?

Solution :

As x and y vary inversely proportional which means

x = 1/y

x = k/y

Where, k is inversely proportional constant

So, xy = k

Now, Substituting x=25 and y=3

25 × 3 = k

k = 75

Put back in the equation,

xy = 75

Now, Put x=15

15y = 75

y = 75/15

y = 5

Therefore, The value of y=5 when x=15.

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