Ms. Nellies has 2 pints of vinegar for her students to use in a science experiment. Each group of students needs pint of vinegar. Trey draws the number line model and writes the 3 equation below to help Ms. Nellies figure out how many -pint servings of vinegar she has. Are Trey's number line model and equation correct? 3 1 1 + 1 2 -3 Click the arrows to choose an answer from each menu. Trey's number line model is Choose... because it represents the expression Choose... The correct equation is Choose... Ms. Nellies has enough vinegar for Choose... groups of students. 1/2 1/3
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
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