Question 1098843
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The soccer team collected $800 at a car wash fundraiser. They charged $5.00 for small vehicles and $10.00 for larger vehicles. 
The amount collected can be modeled by the equation 5x + 10y = 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?
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5x + 10y = 800  and  y = 50  ====>


5x + 10*50 = 800  ====>  5x + 500 = 800  ====>  5x = 800-500 = 300  ====>  x = {{{300/5}}} = 60.
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