exam
Maths Puzzle
Numerical Ability
How do I solve the following? Thanks for your help!
(7/2)x + (5/4)y = 4
(5/6)x - 2y = 21
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exam Other Question
Tim paddled his kayak 12km upstream against a 3km/h current and back again in 5 h 20 min. In that time how far could he have paddeld in still water?
- (9/x^2 + x -56) - (8/x+8)
(2/x + 3/2x) / (3/3x - 3/4x)
-(3/x) + (9/9x) = -1