Look at this system of equations. – 3x+7y= – 1
– 15x+30y= – 2

What value of d will make this system have the same solution?
– 3x+7y= – 1
dy=3

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол