Question

nolan made note of all the bicycles and cars he 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 9 bicycles and 6 cars? how many vehicles were on the block if there were ( x ) bicycles and ( y ) cars?
answer attempt 1 out of 5
total vehicles, 9 bicycles and 6 cars:
total vehicles, ( x ) bicycles and ( y ) cars:

Explanation:

Step1: Calculate total vehicles with 9 bicycles and 6 cars

To find the total number of vehicles, we add the number of bicycles and the number of cars. So we add 9 (bicycles) and 6 (cars).
$9 + 6 = 15$

Step2: Find the formula for x bicycles and y cars

The total number of vehicles is the sum of the number of bicycles (x) and the number of cars (y). So the formula is $x + y$.

Answer:

Total vehicles, 9 bicycles and 6 cars: $15$
Total vehicles, $x$ bicycles and $y$ cars: $x + y$