A jet travels 2904 miles against the wind in four hours and 3504 miles with the wind in the same amount of speed. What is the rate of the jet in still air and what is the rate of the wind?

Triangle xyz has vertices x(1,3), y(0,0)

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?