Question

question
yusuf 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 wheels were on the block if there were 13 bicycles and 12 cars? how many wheels were on the block if there were ( x ) bicycles and ( y ) cars?

answer attempt 1 out of 2

total wheels, 13 bicycles and 12 cars:

total wheels, ( x ) bicycles and ( y ) cars:

Explanation:

Step1: Calculate bicycle wheels (13 bikes)

$13 \times 2 = 26$

Step2: Calculate car wheels (12 cars)

$12 \times 4 = 48$

Step3: Sum total wheels

$26 + 48 = 74$

Step4: Generalize for $x,y$

Total wheels = (Bicycle wheels) + (Car wheels)
$\text{Total wheels} = 2x + 4y$

Answer:

Total wheels, 13 bicycles and 12 cars: 74
Total wheels, $x$ bicycles and $y$ cars: $2x + 4y$