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The layer of gold coating on a ring should be 0.03 millimeters thick when the ring is completed. A coating of 0.021 millimeters has already been applied. How many more millimeters of gold coating must be added to finish the ring?        A. 0.018 millimeters   B. 0.009 millimeters   C. 0.18 millimeters   D. 0.09 millimeters

User Vboctor
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2 Answers

1 vote
0.009is the correct answer

User Kelsy
by
8.5k points
6 votes
B

0.03 = 0.021 + 0.009
User Akshay Rathod
by
8.2k points
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