Question 1083423
You forgot to post the answer choices.


However, the answer should be something like 2A+3B or C = 2A+3B


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Explanation:


A = number of model A trucks
2*A = total capacity of just the model A trucks
Note: 2A is the same as 2*A so let's just write 2A from now on


B = number of model B trucks
3*B = total capacity of just the model B trucks
Note: similar to the last note above, 3*B = 3B so let's write 3B from now on


We have 2A tons from the model A trucks and 3B tons from the model B trucks. 
Add up these expressions to get 2A+3B which is the total capacity of all the trucks (both models included).


If C is the total capacity, then we can say
C = 2A+3B