A bag contains 6 red and 10 black marbles. If you pick a marble, record it’s color, and return it to the bag 200 times, how many times can you expect to pick a black marble?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?