exam
Maths Puzzle
Numerical Ability
how many liters of a 45% salt solution should be mixed with 9 liters of a 35% salt solution to make a solution that is 36% salt? round to the nearest hundredth
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exam Other Question
A rectangular garden has dimensions of 18 ft by 13 ft. A gravel path of uniform width is to be built around the garden. How wide can the path be if there is enough gravel for 516 square feet?
I tried using logarithms, but I was a bit confused??? Help?
4^x = (5^x + 2)^.5