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mixas84 [53]
3 years ago
11

Wendy drew a square. She then erased it and drew a second square whose sides were 3 times the sides of the first square. The are

a of the second square is k% greater than the area of the first square. What is k?
Mathematics
1 answer:
jolli1 [7]3 years ago
6 0

Answer:

x times x is x^2 for first area. second area is 3 times that so 3x times 3x you get 9x^2 for the second area. 9 - 1 times 100% would then be 800% larger.

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3 years ago
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irga5000 [103]
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C. \\&#10;y-2x=3 \ \ \ |+2x \\&#10;y=2x+3 \\ \\&#10;D. \\ &#10;-2y-4x=3 \ \ \ |+4x \\&#10;-2y=4x+3 \ \ \ |\div (-2) \\&#10;y=-2x-\frac{3}{2}

Lines A, B and C have the same slope as the line 2y-4x=3, so they are parallel and don't intersect it.
Line D has another slope, so it intersects the line 2y-4x=3.
The answer is D.
3 0
4 years ago
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