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Maths Puzzle
Numerical Ability
nuts are sold $15.00 per kg for cashews and pecans are $10.00 per kg. How many kg of each should be mixed in order to get 20kg worth $12.00 per kg?
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book Other Question
Simplify (2x-4)(4x-2)
This is what I've done. Is this correct?
(2x*4x)(-4*-2)=8x+8
Divide and simplify
3x^2 +13x + 4 / 3x^2-5x-12
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16-x^2 3x-12