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Karolina [17]
3 years ago
10

Please help version 2

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
3 0

Answer:

16°

Step-by-step explanation:

2x° + 6° = 38°

x° = (38°- 6°)÷2=16°

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After a 20% discount and 5% sales tax, a book costs $16.80. What was the original price of the book?
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<u>Answer:</u>

19.15

<u>Step-by-step explanation:</u>

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The length of each side of a square is 6 feet more than the length of a side of a regular Octagon. The perimeter of the square i
goldfiish [28.3K]

9514 1404 393

Answer:

  • square: 12 ft sides
  • octagon: 6 ft sides

Step-by-step explanation:

This problem can be worked in your head.

If the perimeters of the square and regular octagon are the same, the side length of the 4-sided square must be the same as the length of 2 sides of the 8-sided octagon. Since the side of the square is 6 ft more than the side of the octagon, each side of the octagon must be 6 ft, and each side of the square must be 12 ft.

__

We can let s represent the side length of the octagon. Then we have ...

  8s = perimeter of octagon

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The octagon has 6-ft sides; the square has 12-ft sides.

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