A gym has two machines you want to use. An elliptical trainer that burns 8 calories per minute, and a stationary bike that burns 6 calories per minute. You have 40 minutes to exercise at the gym, and you want to burn 300 calories total using both machines. How much time should you spend on each machine? (Use x for the elliptical and y for the bike)

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.