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Academics – Mathematics : 2018/JUL/02
Question

Q2. a. Calculate the mass of a metal containing 55% nickel which would be required to combine with 10 mg of pure nickel to form an alloy containing 85% nickel. (6)

b. Solve EACH Of the following equations for x:

i) 3/(x + 3) + 2/(x - 3) = 5/(x - 1) (6)

ii) x2 - 13x + 40 = 0 (4)

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