It is given that l varies directly as m.
(i) Write an equation which relates l and m.

(ii) Find the constant of proportion (k), when l is 6 then m is 18.

(iii) Find l, when m is 33.

(iv) Find m when l is 8.

Question

Philoid · Accepted Answer

Since l varies directly as m.

a. Equation related to l and m is

b. If

c. If m = 33, then

⇒

⇒ ⇒

d. if

∴ ⇒

⇒ m = 8× 3 = 24

It is given that l varies directly as m.(i) Write an equation which relates l and m.(ii) Find the constant of proportion (k), when l is 6 then m is 18.(iii) Find l, when m is 33.(iv) Find m when l is 8.