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dimulka [17.4K]
3 years ago
14

What factors do 20 and 30 have in common? please help me:)

Mathematics
1 answer:
Vilka [71]3 years ago
8 0

Answer:

1, 2, 5, and 10

Step-by-step explanation:

Factors for 20 are:

1, 2, 4, 5, 10, 20

Factors for 30 are:

1, 2, 3, 5, 6, 10, 15, 30

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Kelsey drew a rectangle with the same area as the square. The length of Kelsey's rectangle is 8 inches. What is the perimeter in
Nutka1998 [239]

Answer:  The answer is 20 inches.


Step-by-step explanation:  As given in the question and shown in the attached figure, Keyley drew the rectangle 'R' and square 'S' with equal areas.

Also, the length of Keyley's rectangle 'R' = 8 inches. Let the breadth be 'b' inches. Again, let 'l' be the length of a side of square 'S'.

Then, we must have

8\times b=\ell^2.

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Thus, the breadth of 'R' is b = 2 inches and side of 'S' = 4 inches.

Therefore, perimeter of Keyley's rectangle 'R' is given by

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