a 500ace parking lot is filled with motorcycles and passenger cars, how many motocycles and cars are there if the total number of tires on the parked vechiles i

Question

 500 vehicles 1650 tires are parked how many vehicles are there 

Answer 1

Let x = the number of parked motorcycles

Let y = the number of parked cars

x + y = 500     y = 500 - x

2x + 4y = 1650

2x + 4(500 - x) = 1650

2x + 2000 - 4x = 1650

-2x = -350

x = 175 motorcycles

y = 500 - 175

y = 325 cars