Pat mixed .85/lb coffee with .55/lb coffee to form a mixture worth .75/lb. How many lbs of each should she use to make 120lbs of the mixture?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Big boi and travis scott are performing at the super bowl. travis scott is 62 years younger than twice big boi’s age. the sum of their ages is 70 years old. use b to represent big boi’s age. write and solve an equation.

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.