Question

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?

a.55
b.60
c.130
d.150

Answer 1

if y=50 find x
5x+10y=800
5x+10(50)=800
5x+500=800
minus 500 both sides
5x=300
divide both sides by 5
x=60

answer is B. 60