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Maths Puzzle
Numerical Ability
i could really use someones help with this one! translate "nine less than the total of five and a number"into a mathematical expression. thanks!
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/2x-1/=11
-4/x+1/=-20
/3x-9/>3 graph
-3+/x-1/<=-1 graph
help please
Mary runs at a rate of 5 miles per hour to her friend's house. She runs back at 10 miles per hour and spends one hour less on the trip. How far away is her friend 's house?