exam
Maths Puzzle
Numerical Ability
How many pounds of coffee at 4.00 a pound must be mixed with coffee at 20.00 a pound to make 50 pounds of coffee that are worth 10.00 a pound?
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exam Other Question
solve the equation by completing the square. my equation r^2-6r=0. how do i solve it?
1. square root of 50x^6y^3