exam Maths Puzzle Numerical Ability

A concrete mix is in volume proportions of 1 part cement, 2 parts water, 2 parts aggregate, and 3 parts sand. How many cubic feet of each ingredient are needed to make 54 cu ft of concrete?

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You can travel28 miles in 45 minutes. You want to know the number of minutes you will need to go 59 miles if you travel at the same rate? Quadratic functions
Find the maximum(or munimun) of each function, also determine the x-intercepts of each function (if any). express your final answers as decimal number (rounded