Working together, it takes two computers 10 minutes to send out a company's email. if it takes the slower computer 50 minutes to do the job on its own, how long will it take the faster computer to do the job on its own? don't round

7x+8y=-18, 4x-9y=-3 solve the system of equations

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.