{{ item.displayTitle }}

No history yet!

Student

Teacher

{{ item.displayTitle }}

{{ item.subject.displayTitle }}

{{ searchError }}

{{ courseTrack.displayTitle }} {{ statistics.percent }}% Sign in to view progress

{{ printedBook.courseTrack.name }} {{ printedBook.name }} Let $A(n)$ be the sequence representing the number of tires in the bin. After the first purchase, the bin has $20$ tires. This means that our first term, $A(1),$ is $20.$ For each new customer, the bin gains another $4$ tires which makes the common difference of the sequence $4.$ $20→+424→+4…$

The generic form of an explicit formula of an arithmetic sequence is $A(n)=A(1)+(n−1)d,$ where $A(1)$ is the initial value and $d$ is the common difference. By substituting $A(1)=20$ and $d=4$ into the above formula, we get our equation. $A(n)=20+(n−1)4$