To represent the total weight of the trail mix and granola, you can use the following equation:
\[ t + g = 21 \]
Where:
- \( t \) represents the number of pounds of trail mix.
- \( g \) represents the number of pounds of granola.
In addition, you've provided another equation related to the costs:
\[ 3t + 2g = 51 \]
This equation represents the total cost based on the price per pound of trail mix and granola.
In summary, you have two equations:
-
For the total weight: \[ t + g = 21 \]
-
For the total cost: \[ 3t + 2g = 51 \]