exam
Maths Puzzle
Numerical Ability
120=7x+2-10
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exam Other Question
five gallons of 10% glucose solution is mixed wth x gallons of 40%glucose solution to obtain a 20% glucose solution. how many of the 40% solution were used?
An employee who produces x units per hour earns an hourly wage of y = 0.55x +12 (in dollars). Find the hourly wage for an employee who produces 20 units per hour.