Ulrich and Jacinta work for a cleaning business to earn college tuition money. Jacinta can clean a client's apartment in 1 hour 20 minutes if she works alone. Ulrich and Jacinta can
clean the apartment in 48 minutes if they work together. How long (in minutes) does it
take Ulrich to clean the apartment if he works alone? Assume both people work at steady
rates and their rates are not affected by either working alone or working togeth