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Maths Puzzle
Numerical Ability
how do you answer an equation in an ordered pair?
5x+5y=0
3x+y=-10
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book Other Question
transform the following expression to the standard form.
(2-radical 6i)squared
How much of an alloy which contains 6 grams of gold in 10 grams must be melted with another alloy which contains 3 grams of gold in 10 grams, to give an alloy containing 5 grams of