Answer: There are 60 small vehicles that were washed in total.
Explanation:
Since we have given that
Let x be the number of small vehicles.
Let y be the number of large vehicles.
Cost of each small vehicles = $5.00
Cost of each large vehicles = $10.00
Since the number of larger vehicles = 50
According to question, it becomes,
![5x+10y=800\\\\5x+10* 50=800\\\\5x+500=800\\\\5x=800-500\\\\5x=300\\\\x=(300)/(5)\\\\x=60](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6690p6gitq912rqdwh6m0qecnz2prd74v2.png)
Hence, there are 60 small vehicles that were washed in total.