exam
Maths Puzzle
Numerical Ability
How many pounds of a 12% aluminum alloy must be mixed with 400 pounds of a 25% aluminum alloy to make a 17% aluminum alloy?
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exam Other Question
Multiply and Simplify: x^2-7x+12*x^2+6x+8
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X^2-6x+8 x62-x-6
how do I solve 4+ x<-2