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Maths Puzzle
Numerical Ability
Austin has 42 paperback books that are either Mysteries or Science Fiction. If he has 16 more mysteries than science fiction books, how many mysteries does he have?
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It has been many years since I have been in algebra. I need a quick help on how to Graph the quadratic equations using the vertex and the roots of the equations.
y=x(2)-x-6
A mixture of 30 lbs. of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of each kind were used to make the mixture?