The answer to 2/3-1/3 is 1/3 since there are 2 1/3 in 2/3.
The correct answer would be a length of 12 meters long
The amount of gold coating in millimeters needed for the ring is the difference between the total coating and the coating that has already been applied. From the given above, that would be,
0.03 mm - 0.021 mm = 0.009 mm
Thus, the answer to this question is letter B.
Can you add the picture to the question?
What’s the question?
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