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Answer:
A
Step-by-step explanation:
-13m = -12
m = 12/13 = 0.92
The answer to this equation is x=63
A basic unit of a chemical element
Answer:
9 ft
Step-by-step explanation:
Let x represent the shortest piece. Then the sum of lengths is ...
x + (x +25) +3x = 40
5x = 15
x = 3
3x = 9
The third piece is 9 feet long.
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<em>Check</em>
The pieces are 3 ft, 28 ft, 9 ft, so total 40 ft, as required.