exam
Maths Puzzle
Numerical Ability
how much water must be evaporated from a 10 kg solution which has 4% salt to make a solurtion of 10% salt?
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exam Other Question
Solve the system using any algebraic method:
7x+5y=-12
3x-4y=1
Consider the problem:
(x-8)/ (x-5 ) divided by (x-9)/ (x+4)
Explain why -5, 9, and -4 are not allowable replacements for the variable x.