[填空题]
The amount of fuel in a car's tank, V, in litres, can be mpykpj t6d45+hu ) o0fieg3.be::rl fqi(t50fiaif)0/+ wecohve vt) odelled by a linear function, V=mx+c, where x is the distance driven measured in f/ oh0v0t):itl5f veqef: +rc wa(i)ikilometres.
After driving 100 km, the amount of fuel in the tank is 33 litres.
1.Write down an equation that describes this information.
After driving 250 km, the amount of fuel in the tank is 22.5 litres.
2.Write down an equation that describes this second piece of information.
3.Calculate the amount of fuel in the tank after driving 50 km. V = litres