SOLUTION: To make a non-vegetarian fajita at Freebirds, you must choose between a flour or corn tortilla. You must then choose one type of meat from 4 types offered. You can then add any c

Algebra ->  Permutations -> SOLUTION: To make a non-vegetarian fajita at Freebirds, you must choose between a flour or corn tortilla. You must then choose one type of meat from 4 types offered. You can then add any c      Log On


   

Question 1138907: To make a non-vegetarian fajita at Freebirds, you must choose between a flour or
corn tortilla. You must then choose one type of meat from 4 types offered. You
can then add any combination of extras (including no extras). The extras offered are
fajita vegetables, beans, salsa, guacamole, sour cream, cheese and lettuce. How many
different fajitas can you make?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
(2 choices of tortilla) * (4 choices of meat) * (2%5E7 choices of extras)
= ___________


Each extra can only be (1) in the fajita or (2) not in the fajita. In this way, each extra contributes a factor of 2 to the total number of fajitas. Counting shows that there are 7 of them.