Question

If x and y vary inversly and x = 15, then find y when constant of variation is 90.

plz answer this in steps...its urgent​

Answer 1

Given,

• x and y vary inversely.

$\boxed{\bold{\sf{xy = k \ (constant)}}}$

Given,

• x = 15
• k = 90

Applying values to the equation:

$\sf{\implies 15y=90}$

$\sf{\implies y=\dfrac{90}{15}}$

$\sf{\implies y=6}$

$\boxed{\bold{\sf{\therefore y=6}}}$