Question

If x is indirectly proportional to y and x = 15 when y = 6, find
(i) The value of x when y = 9.
(ii) An equation connecting x and y.
(iii) The value of y when x = 3.

Answer 1

Step-by-step explanation:

x is indirectly proportional to y

xy= k

x = 15 when y = 6 => 15×6=k

=> k= 90

so xy= 90

(i) when y = 9.

x9=90

x=90/9

x=10

(ii) An equation connecting x and y.

xy=90

(iii) when x = 3.

3y= 90

y= 90/3

y= 30