Zach tried to solve an equation step by step. \begin{aligned} \dfrac34&=z-\dfrac12 \dfrac34+\dfrac12&=z-\dfrac12+\ dfrac12&\green{\text{Step } 1} \dfrac54&=z&\blue{\text{Ste p } 2} \end{aligned}
4
3
​

4
3
​
+
2
1
​

4
5
​

​

=z−
2
1
​

=z−
2
1
​
+
2
1
​

=z
​

Step 1
Step 2
​

Find Zach's mistake.
Choose 1

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

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