thetsumaw thetsumaw

03-05-2024
Mathematics

Answered

A mixture for concrete is made up of 105 kg of cement, 252kg of sand and 273 kg of gravel. Given that the mass of cement: the mass of sand: the mass of gravel = 1: (2x y): (x 2y) (a) write down two different equations in x and y. Simplify your equations. (b) Hence solve these two equations for the value of x and for the value of y. Give each value as a simplified fraction.

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