The time t required to empty a tank varies inversely as the pumping rate r. If a pump can empty a tank in 2 hours at a rate of 8 gallons per hour, what is the constant of variation?.

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.

28. the new systematic nomenclature was so ( that many chemists preferred to ( the older trivial names that were at least shorter. at least, that is the ostensible reason. actually, tradition seems to carry more weight than ( with some scientists.

Aconstruction crew was made up of 88 men and the rest women. if 40% of the crew were men, how many people were in the crew?