exam
Maths Puzzle
Numerical Ability
mix a solution that is 60% acid. with a solution that is 100% acid to make 12L of a solution that is 75% acid. How much of each solution should you use?
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exam Other Question
Please help me solve this equation: -8(4-2)-3/-2.
Here is what I have so far:
-8(2)-3/-2
-16-3/-2
Please help.
I think i need to multiply the exponents but im not entirely sure.
(3x^2y^3/4x^-2)^3