exam
Maths Puzzle
Numerical Ability
Mix a solution that is 50% acid with a solution that is 100% water to make 4L of a solution that is 10% acid. How much of each solution do you use?
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exam Other Question
My least favorite because I do not understand these:(
What is the focal point of 1/3(y-2)=2(^-x+5)
Im really confused could someone please help?
Solve by factoring:
7a2+9a+2=0