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A is partly constant and partly varies as b when A is equal to 15 B was 2 when is equal to A 45 is B equal to 8
6 years ago

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R_scott
A = n B + k

15 = 2 n + k

45 = 8 n + k

subtracting equations ... 30 = 6 n

solve for n , then substitute back to find k
6 years ago

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