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Maths Puzzle
Numerical Ability
Can this be factored? x^2+4
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Hello!
How much water should be added to 1 gallon of pure antifreeeze to obtain a solution that is 60% antifreeze?
If someone could show me how to set this problem up it would be appreicated.
Find the following if f(x) = 5x -1 f(a-2)
a-2 = 5(a-2) - 1
a-2 = 5a -10 - 1
-2 = -4
1 = 2
Double checking to see if I did these right