Answer:
4 boxes
Explanation:
Given
Represent Dark Chocolate with D and Milk Chocolate with M
pieces
pieces
![Total = 169](https://img.qammunity.org/2021/formulas/mathematics/high-school/knwcuxhlttggwvmisii4ynpo7cxsutmjbl.png)
First, we need to determine the quantities in e boxes of dark chocolate.
![Quantity = 24 * 3](https://img.qammunity.org/2021/formulas/mathematics/high-school/w4ruohkgnykeq8bqnotdqijrlygsz9wtua.png)
![Quantity = 72](https://img.qammunity.org/2021/formulas/mathematics/high-school/ugnofkbrijc4q484drmvs2vxkqqlb0uoxn.png)
Subtract this quantity from the total; This gives the quantities of milk chocolate
![Milk\ Chocolate = 169 - 72](https://img.qammunity.org/2021/formulas/mathematics/high-school/6rphr0tarmiqfppb6efixi0zwtztupw1ix.png)
pieces
Lastly, divide this by the 20 pieces (of milk chocolate) to get the number of boxes.
![Boxes = 97/20](https://img.qammunity.org/2021/formulas/mathematics/high-school/h8pk0k2hx2zbjbfsc1zsz2nrd2327yi1nz.png)
![Boxes = 4.85](https://img.qammunity.org/2021/formulas/mathematics/high-school/j429monlv9it8ke3d14tfpkhtdl3c8f199.png)
Since, we're getting the fewer boxes, we have to round down
![Boxes = 4](https://img.qammunity.org/2021/formulas/mathematics/high-school/h90bv9jfye7rtcbnglad9b5bijd5d38y6n.png)