Question 71 (iv)

It is given that l varies directly as m.
Find m, when l is 8.

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Solution

IF $l = 8 ∴ \frac{l}{m} = k \Rightarrow \frac{8}{m} = \frac{1}{3} \Rightarrow m = 8 \times 3 = 24$

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Question 71 (iii)

It is given that l varies directly as m.
Find l, when m is 33.

Question 71 (iv)

It is given that l varies directly as m.
Find m, when l is 8.

Question 71(ii)

It is given that l varies directly as m.
Find the constant of proportion (k), when l is 6, then m is 18.

Question 71(i)

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

Question 71(ii)

It is given that l varies directly as m.
Find the constant of proportion (k), when l is 6, then m is 18.

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