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Nimfa-mama [501]
3 years ago
7

A circle has a diameter of 18 mm. What is its circumference?

Mathematics
1 answer:
Sloan [31]3 years ago
4 0

Answer:

56.52mm

Step-by-step explanation:

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The perimeter of a rectangular skating rink is 530 feet. If the length is 5 feet more than 3 times the
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Answer:

length:  200

width:  65

Step-by-step explanation:

length:  3w + 5

width:  w

perimeter = 2L + 2W

530 = 2(3w + 5) + 2w

530 = 6w + 10 + 2w

530 = 8w + 10

520 = 8w

w = 65

length:  3w + 5 = 3(65) + 5 = 200

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