Given :
Admission price , A = $15 .
Price of each ride , p = $3 .
Number of rides , r = 3 .
To Find :
Total money spend if he goes on 5 rides and for r number of rides .
Solution :
Let , total amount paid is P .
First we find the general equation :
![Total \ amount = Admission\ Fee - r\times ( Fee\ per\ ride )](https://tex.z-dn.net/?f=Total%20%5C%20amount%20%3D%20Admission%5C%20Fee%20-%20r%5Ctimes%20%28%20Fee%5C%20per%5C%20ride%20%29)
![P=15+3r](https://tex.z-dn.net/?f=P%3D15%2B3r)
Now , for r = 5 , total price is :
![P=15+3\times 5\\\\P=15+15=\$30](https://tex.z-dn.net/?f=P%3D15%2B3%5Ctimes%205%5C%5C%5C%5CP%3D15%2B15%3D%5C%2430)
Hence , this is the required solution .