The Morgan family and the Kim family each used their sprinklers last summer. The water output rate for the Morgan family’s sprinkler was 15 L per hour. The water output rate for the Kim family’s sprinkler was 25 L per hour. The families used their sprinklers for a combined total of 70 hours, resulting in a total water output of 1350 L. How long was each sprinkler used?

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

Needmax 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.

The constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.