Three quantities R, S, T are such that R varies directly as S and inversely as the square of T.

Three quantities R, S, T are such that R varies directly as S and inversely as the square of T.
(a) Given that R = 480 when S = 150 and T = 5, write an equation connecting R, S and T
(b) (i) Find the value of R when S = 360 and T = 1.5
(ii) Find the percentage change in R if S increases by 5% and T decreases by 20%

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sharon kalunda answered the question on April 29, 2019 at 14:07

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