If you buy 1/4 pizza for 5 dollars, how much can you purchase for 8 dollars

First step: figure out how much one pizza costs. If a quarter of a pizza costs $5, it figures that one pizza costs

5

*

4

=

$

20

. This is worked out mathematically by dividing the cost by the amount of pizza:

5

1

4

=

20

Now you can work out how much pizza you get for $8 by doing the same in reverse: dividing $8 by the cost for one whole pizza:

8

20

=

0.4

=

2

5