Acertain drug is made from only two ingredients: compound a and compound b. there are 5 milliliters of compound a used for every 7 milliliters of compound b. if a chemist wants to make 684 milliliters of the drug, how many milliliters of compound a are needed?

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

What are the sotions to the quadratic equation 9x^2=4

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.