Emily has been saving some money. Last night she counted 94 bills – in $1’s, $5’s, and $10’s – with a total value of $598. She noticed she has twice as many $5-bills as she has $1- bills. Let x represent the number of $1 bills, y represent the number of $5 bills, and z the number of $10 bills. Set up a system that could be used to find the number of $10 bills she has

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes