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Maths Puzzle
Numerical Ability
|X+1|=3
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You are taking a computer course in which there will be four tests, each worth 100 points. You have scores of 92, 88, and 100 on the firt three tests. You must make a total of 360 in order to get an A. What scores on the last test will give you an A?
Construct the equation of a line that goes through the origin and is perpendicular to the given equation.
(a)y = 5
x = ?
(b)x = -7
y = ?