The question is an illustration of equivalent equations.
There are 11 units in all
The given parameters are:
Sage
[tex]\mathbf{Strip-mat = 3}[/tex]
[tex]\mathbf{Mat = 3}[/tex]
[tex]\mathbf{Units = 2}[/tex]
Tristan
[tex]\mathbf{Strip-mat = 8}[/tex]
[tex]\mathbf{Mat = 2}[/tex]
[tex]\mathbf{Units = 5}[/tex]
Andre has twice of what Sage has
So, the total unit is:
[tex]\mathbf{Total = Sage + Tristan + Andre}[/tex]
Sage has 2 units
Tristan has 5 units
Because, Andre has twice of what Sage has,
Andre's number of units would be 4
So, we have:
[tex]\mathbf{Total = 2 +5 + 4}[/tex]
[tex]\mathbf{Total = 11}[/tex]
Hence, there are 11 units in all
Read more about equivalent equations at:
https://brainly.com/question/18720297
