exam Maths Puzzle Numerical Ability

Use the set builder notation to describe the complete solution.
7/4(3x-1/2)-4/3<5/3

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exam Other Question

Simplify the expression.

17. 4c/9 + 8c/9

Any help with this equation would GREATLY</b> appreciated.
Hello, please explain to me how I should set up a system of equations to solve this problem. How many liters of a 30% acid solution must be added to a 10% acid solution to obtain 32 liters of a 15% acid solution?