Sol Lushen, a chemistry student, has two solutions, solution A and solution B.  Solution A contains 10% acid and solution B contains 30% acid.  She needs 80 milliliters (mL) of a 16% acid solution.      How many milliliters of each solution have to mixed to obtain the 16% solution?

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.