Question

suppose x and ya are inverse proportion such that when x is 15 and y is 8 find the value of y when x = 20

please give with full working if you wanna get the brainliest. please help in this question​

Answer 1

Step-by-step explanation:

Given:

$x \propto \frac{1}{y} \\ x = \frac{a}{y}$

Substituting the given values

$15 = \frac{a}{8} \\ a = 120$

So,

$x = \frac{120}{y} \\ 20 = \frac{120}{y} \\ y = 60$