A chemist has a solution of 30 percent hydrochloric acid and a solution of 15 percent hydrochloric acid. He mixes the two solutions together to create 24 ounces of a 25 percent hydrochloric acid solution. How many ounces of the 30 percent hydrochloric acid solution did he use in order to obtain the 25 percent solution

Suppose that x and y are both differentiable functions of t and are related by the given equation. use implicit differentiation with respect to t to determine startfraction dy over dt endfraction in terms of x, y, and startfraction dx over dt endfraction .

Two lines that do not intersect are skew. always sometimes or never

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.