The soccer team collected 800 dollars at a car wash fundraiser. They charged 5 point 0 0 dollars for small vehicles and 10 point 0 0 dollars for larger vehicles. The amount collected can be modeled by the equation 5 x plus 10 y is equal to 800 , where x represents the number of small vehicles and y represents the number of larger vehicles. If the number of larger vehicles washed was 50 , how many small vehicles were washed in total?