At practice, Noah does twice as many push-ups as Diego, and also 40 jumping jacks. He does 62 exercises in total. The equation: 2x + 40 = 62 describes this situation. What does the variable x represent?

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.