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erik [133]
3 years ago
10

PLEASE HELP ASAP, BEST ANSWER GETS BRAINLIEST

Mathematics
1 answer:
olchik [2.2K]3 years ago
5 0

Answer:

x/y = 88/7

Step-by-step explanation:

x+y=19

x+3y=12y+5

First rewrite second equation as:

x +3y-12y = 5

Combine like terms:

x-9y = 5

Now you have:

x+y=19

x-9y = 5

Elimination method  Subtract 2 equations:

10y = 14  Divide both sides by 10

y = 14/10 = 7/5

Plug in y in any given equation and calculate x:

x+ 7/5 = 19  Subtract 7/5 from 19

x = 88/5 = 17 3/5

x/y = 88/5 : 7/5

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Since congruence and similarity for polygons is posted in a specific order, we know that angle A=angle F, side A=side F, die B=side G, and so on. Therefore, we have that angle C=angle H = 9x-7=5x+13. Subtracting 5x from both sides to separate the x using the subtraction property of equality, we get 4x-7=13. Next, we can add 7 to both sides to get 4x=20, and divide both sides by 4 to isolate the x and get x=5. Plugging that into angle C or angle H, we get that 9x-7=9*5-7=45-7=38=5*5+13.

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