Malika made note of all the bicycles and cars she could see parked or locked on a certain city block. All the cars had exactly four wheels, and all the bicycles had exactly two wheels. How many vehicles were on the block if there were 4 bicycles and 6 cars? How many vehicles were on the block if there were xx bicycles and yy cars?
Answer
Attempt 1 out of 2
Total vehicles, 4 bicycles and 6 cars:
Total vehicles, xx bicycles and yy cars:
Total vehicles, 4 bicycles and 6 cars: 4 + 6 = 10 vehicles
Total vehicles, xx bicycles and yy cars: xx + yy vehicles