Which pair of ratios will make a proportion? A. 1/2 and 5/11 B. 1/2 and 5/10 C. 1/2 and 6/11 D. 1/2 and 4/7

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

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