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Usimov [2.4K]
2 years ago
7

A teacher writes the expression 3 (6m + 3) and asks for students to write equivalent expressions. The table shows the students'

responses.
Student
1
2
3
4
Response
9m + 6
18m + 3
18m + 9
21m
Select the best answer from the choices below:
Student 1 is correct because distributing the 3 in the teacher's expression yields Om + 6
Student 2 is correct because distributing the 3 in the teacher's expression yields 18m + 3
Student 3 is correct because distributing the 3 in the teacher's expression yields 18m + 9
Student 4 is correct because distributing the 3 in the teacher's expression, and then adding the two terms together yields 21m
Mathematics
2 answers:
katrin2010 [14]2 years ago
6 0
Student 3 is correct. This is because you can distribute 3. You would do 3x6m, or 18m, and you can do 3x3, or 9. This means that Student 3 is correct. Since m is not defined as an integer, it can’t be any of the other choices.
blondinia [14]2 years ago
4 0
Student 3 is correct because distributing the 3 in the teacher's expression yields 18m+9. Basically, everything in the parentheses was equally multiplied by 3, and you cankt add a variable and a number without one together, so it is the final and correct answer.
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