book
Maths Puzzle
Numerical Ability
A chemist mixes 10% citric acid solution with a 50% acid solution to form 40ml of a 40% solution. How much of each solution should be used in the mixture?
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book Other Question
write an equation in slope intercept form of the line with each slope and y-intercept.
m=0,b=4
What is (-1)(a+b+c)