Kim throws a stone off a bridge into a river below. The stone's height (in meters above the water ) X seconds after
she threw it, is modeled by
h (t) = - 5t2 + 20t + 60

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Divide. write in the simplest form. 4 1/6 divided by 10

Combine the information in the problem and the chart using the average balance method to solve the problem.