Answer:
Percent of rise of a new truck on a used truck = 15%
Explanation:
Let x be the percentage of saved money if Jason buying a used truck.
Given:
Price of the used truck = $34,000
Price of the new truck = $40,000
We need to find the percent of rise Jason saves on a used truck rather than buying a new truck
Solution:
Using a percentage formula.
![percentage\ cost = ((100-x))/(100)* Original\ cost](https://img.qammunity.org/2021/formulas/mathematics/high-school/9uvvl7rz3yxsg9r7xfe1dn45phzhnbh43d.png)
Substitute Percentage cost = 34,000 and Original cost = 40,000 in above formula.
![34000 = ((100-x))/(100)* 40000](https://img.qammunity.org/2021/formulas/mathematics/high-school/a6rosstzliveee7sxy4rdjmobkognfrtll.png)
(
)
Using cross multiplication rule.
![(100-x)=(34000)/(400)](https://img.qammunity.org/2021/formulas/mathematics/high-school/7dhfsefyf2aa74o6epqi13al7ddkkri929.png)
![85=100-x](https://img.qammunity.org/2021/formulas/mathematics/high-school/q7dk4tpgesio8lb4e7qksu82u2jq3miwxp.png)
![x = 100-85](https://img.qammunity.org/2021/formulas/mathematics/high-school/rkfam0ax83rnanip2tsgrp53y13lmlvbaa.png)
x = 15%
Therefore, Jason used 15% rise of a new truck for a used truck.