Red marbles2/50blue marbles3/25 what fraction of marbles are red or blue...and how do I figure this out

4/25 I think

Step-by-step explanation:

Simplify the 2/50 and turn it into 1/25. Then you just add 1/25 + 3/25

check above link.

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.