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Inessa05 [86]
3 years ago
6

Mario is constructing a frame for a 10 in .by 8 in. photo. He wants the frame to be the same width all the way around and the to

tal area of the frame and photo to be 120 square inches. What is the dimension of the frame?
Mathematics
2 answers:
alexgriva [62]3 years ago
8 0
(10+2x)(8+2x) = 120
4x^2 + 36x + 80 = 120
x^2 + 9x + 20 = 30

x^2 + 9x - 10 = 0

(x+10)(x-1) = 0

x = 1 inch dimension
mixas84 [53]3 years ago
6 0
<span>(10+2x)(8+2x) = 120

4x^2 + 36x + 80 = 120
x^2 + 9x + 20 = 30
---
x^2 + 9x - 10 = 0
-----
(x+10)(x-1) = 0
---
x = 1 inch
----
Ans: Width of frame = 1 in
</span>
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The option third ∠R ≅ ∠V is correct because line segment RS and UV are parallel which is crossed by a transversal RV.

<h3>What is the similarity law for triangles?</h3>

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The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

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brainly.com/question/8045819

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