exam
Maths Puzzle
Numerical Ability
Factor out the greatest common factor.
30x^4 -48x^2 +15x
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exam Other Question
Solve the following system of equations. If the system cannot be solved, state that it cannot be solved and explain why.
3x-2y=4
2x-5y=21
A 34% acid solution was mixed with a 66% acid solution to produce 216 liters of a 42% acid solution. How much liters of each solution was mixed?