book
Maths Puzzle
Numerical Ability
Suppose W varies directly as x and y and inversely as Z, and W=48 when X=2, Y=8 and Z=12. Find W when X=12, Y=6 and Z=24.
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book Other Question
Solve the following system by using either addition or substitution. If a unique solution
does not exist, state whether the system is dependent or inconsistent.
10x + 2y = 7
y = -5x + 3
How do you solve for linear equations with this problem: 4x+3y=5
-3x-6y=0