Nick went with two friends to fiesta Texas to ride roller coaster, bumper cars, and water slides. The wait for the roller coaster was 1 hour, the wait for the bumper cars was 20 minutes long, and the wait for the water slides was only 15 minutes long. Nick rode 10 total rides during his visit. Because he enjoys roller coasters the most, the number of times he rode the roller coaster was the sum of the times he rode the other two rides. If nick waited in line for a total of 6 hours and 20 minutes, how many of each ride did he go on?

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec