According to a study conducted by a statistical organization the proportion of americans who are satisfied with the way things are going in their lives is 0.76. suppose that a random sample of 110 americans is obtained.

what is the probability that at least 80 americans in the sample are satisfied with their

what is the probability that 77 of fewer americans in the sample are satisfied with their lives?

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

c

step-by-step explanation: