Afarmer wishes to fence a rectangular area behind his barn. the barn forms one end of the rectangle and the length of the rectangle is three times the width. how many linear feet of the fence must he buy if the perimeter of the rectangle is 320 feet?

there are two possible solutions.

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Secant be and cf intersect at point d inside a what is the measure of cde