if a desktop computer costs $800 and a tablet costs $400, how can someone determine how many of each they can buy with $20000?

it depends how many of each you want, you would take $800 for the price of the item or $400. then x for the amount of items you need.  then put that all over your total and divide.

so it would look like this

Step-by-step explanation:

800(x)

20,000

stops on an even number.