exam
Maths Puzzle
Numerical Ability
factor completely: 6y^3+11y^2-35y
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exam Other Question
Lucy has some money invested at 18% annual interest and three times as much invested at 12%. Her total annual income from the two investments is 2200pesos. How much was invested at each rate?
Solve for x: 2/x - 2/2x+1 = 1/x+1