Elena and jada are 12 miles apart on a path when they start moving toward each other. Elena rubs at a constant speed of 5 miles per hour, jada walks at a constant speed of 3 miles per hour. How long does it take until Elena and jade meet?

Select the correct answer from the drop-down menu. this graph represents the inequality x+2< 4,2x> 3,x+6< 12,2x> 12

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14