SOLUTION: If A=2B where A and B are square matrices of order 3×3 and |B|=5, what is |A|?

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Question 1064935: If A=2B where A and B are square matrices of order 3×3 and |B|=5, what is |A|?
Answer by math_helper(2461) About Me  (Show Source):
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Since they are 3x3 matrices, 2B will result in a determinant value |2B| that is 2%5E3 times that of |B|:
|A| = |2B| = 8|B| = 8*5 = highlight%2840%29+