Grandmas bakery sells single-cut apple crust for $6.99 and double crust cheery pies for $10.99. The total number of pies sold on a busy friday was 36. if the amount collected for all the pies that day was $335.64, how many of each type were sold?

Solution:

There are x single-cut apple crust and (36-x) double crust cheery pies

So

6.99x + 10.99(36-x) = 335.64

So

x=15

So there are 15 single-cut apple crust and 21 double crust cheery pies