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Sunny_sXe [5.5K]
3 years ago
13

If a light ray is relflected off the shiny surface at 170 degrees, at what angle did the light ray first strike the surface?

Mathematics
1 answer:
tiny-mole [99]3 years ago
3 0

Answer:

10 degrees

Step-by-step explanation:

take 180-170

and then 10 is  your answer

you only need to try to get to 180

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find a number such that if you add 8 and divide the result by 4 you will get the same answer as id you subtracted 3 from origina
podryga [215]

Answer:

(x + 8) / 4 = (x - 3) / 2     | *4

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7 0
3 years ago
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tankabanditka [31]
Substitution Method:

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3x = 2x + 5

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Check answer:

5 = 3(5) - 10
5 = 15 - 10
5 = 5

5 = 2(5) - 5
5 = 10 - 5
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Since all of the equalities are true, (5, 5) is a true solution
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