Brenda and nine of her friends want to order a pizza. They decide that each person will eat 2 slices. If each pizza has 4 slices, how many pizzas should they order?
How many people are in the group? ** All together, Brenda and her friends make a group of 1 + 9 = <<1+9=10>>10 people
How many slices are there? ** If they each want to eat 2 pizza slices, there should be 10 * 2 = <<10*2=20>>20 slices.
How many pizzas should they order? ** Since a pizza has 4 slices, they will have to order 20/4 = <<20/4=5>>5 pizzas.
#### 5