exam Maths Puzzle Numerical Ability

x= (1000) * [ (A-W) / (W) ] ### y= (1000) * [ (W-N) / (N)] ### z= (1000) * [ (A-N) / (N) ] Write z in terms of x and y. Is this even possible?

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exam Other Question

Complete the square as an aid in graphing :

y = -x^2 + 2x + 2 suppose that the width of a rectangle is 2 inches shorter than the length and that the perimeter of the rectangle is 80. set up an equation for the perimeter involving only L, the length of the rectangle.