Ms. ito's art class used 2/3 of bottle of blue paint. if they used 1/4 as much red paint as blue paint. how many bottles of red paint did they use?

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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.