the table shows the total number of cakes and pies sold at a fundraiser on friday and saturday. it also shows the dollar amount taken in each day.

cake pies total
friday 30 20 $460
saturday 30 40 $620
what is the cost of a cake and the cost of a pie? show your work.

enter your answers in the boxes.
cake: $

pie: $

Take Saturdays total of $620 and subtract Fridays total of $460 to get $160. Divide that by the difference of the number of pies sold on Friday and Saturday to get $8. Take the $8 and multiply by number of pies sold on Friday (20) to get $160. Take that number and subtract it from the total sold on Friday ($460) to get $300. Divide that by how many cakes were sold on Friday (30) and get $10.
So therefore:

Pies - $8 each
Cakes - $10 each