book
Maths Puzzle
Numerical Ability
Graph the equations
1. xy= -6
2 x^2 + 9y^2 = 9
3. x = y^2 -2
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My question says to solve the equation and check the solution.
3 square root of 5= square root of n
Could you help me with this? thanks!
Kerri, Ethan, and Jerry assembled a puzzle together in 40 hours. If Ethan worked twice as fast as Jerry and Kerri worked just as fast as Ethan, then how long would it have taken J