There are 20 bicycles and 10 cars parked in the parking lot. Each bicycle had two wheels and each car had four wheels. How many wheels are there in total?

There are a total of 80 wheels in the parking lot.

Step-by-step explanation:

Let us identify what we know:

1) There are 20 bicycles in the parking lot

2) Each bicycle has 2 wheels

3) There are ten cars in the parking lot

4) Each car has 4 wheels

We can create a formula to find our answer!

(20 x 2) + (10 x 4)  = x (x equals total number of wheels)

40 + 40 = x

x = 80

50-38=12

step-by-step explanation: