Over a 6 month period, a bakery sold an average of 29 pies per day. The number of apple pies they sold was four less than twice the number of blueberry pies they sold. How many blueberry pies did the bakery average selling per day during that period?
The bakery sold an average of
Hopefully this helps!
11 blueberry pies.
It is also possible to work this out using only one variable, as long as we write an expression for each type of pie.
There were fewer blueberry pies sold than apple pies, so:
Let the Number of blueberry pies be
The number of apple pies is
There are 29 pies sold every day.
Blueberry pies + apple pies = 29