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Maths Puzzle
Numerical Ability
#32) The lengths of the sides of three squares are s, s+1, s+2. If their total area is 365cm^2, find their total perimeter.
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this question is from a wksht...can you still help me?
2x-y-z=2
-x+3y+z=-1
2x-4y-3z=-5
i started the problem and for y i got -5/7 and -32/7 for z...i dont think that is right
Solve the following systems by substitution.
5x - 2y = -5
y - 5x = 3