You have a sack of marbles. In the sack there are 5 brown marbles, 9 blue marbles, 3 red marbles, and 7 green marbles. Whats the probability that if a marble is randomly selected out of the sack that a blue marble will be chosen.
9/24 or .375
Solve the system: 2x + 3y= 7 3x + 2y = 8
x = 2, y =1
A block of mass M is being pulled at constant velocity on a horizontal floor with a force F. The coefficient of kinetic friction is μk, between block and floor. Determine the force F.