A chemist creates 200 milliliters of a 52.5 % alcohol solution by combining a 30 % alcohol solution wit 75 % alcohol solution. If x represènts the amount of the 30 % alcohol solution used and y represents amount of the 75 % alcohol solution used, which of the following could be used to model the given infromation? 200 o{0.3 + 0.75y 105 %3D 200 0.03x + 0.075y 105 200 3x + 7.5y 105 + 200 0.3x + 0.75y 52.5 %3D 200 30x + 75y 52.5 %3D ||||

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.