How many liters of water should be evaporated from 60 liters of a 28% salt solution so that the remaining solution contains 32% salt?

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

What is always true about a positive integer raised to a negative odd power?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?