exam
Maths Puzzle
Numerical Ability
Find the area of the triangle
One leg is 7 inches and the hypotenuse is 20 inches and the perimeter is 12 inches.
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Please help! I need to solve for x, y, and z. I don't understand how to solve for three variables.
Solve for x, y, z
X + 10Y + Z = 52
5X + Y + 4Z = 15
X + 2y - 3Z = 12
Thank you
-12sq * 3s