Devaughn's age is two times Sydney's age. The sum of their ages is 48. What is Sydney's age?

The triangles are similar. what is the value of x? show your work.

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

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?