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kap26 [50]
3 years ago
8

Jack got the expression 7x+1 and then wrote his answer as 1+7x . is his answer an equivalent expression? how do you know?

Mathematics
1 answer:
Solnce55 [7]3 years ago
3 0
True. According to the Commutative Property <span>of addition, the numbers could be put in any order and still result in the same answer. </span>



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Answer:

The number of the students is 20.

Step-by-step explanation:

Total number of students in the speech contest = 90

Number of students that gave their speeches yesterday = \frac{2}{3} of 90

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Number of remaining students who have not given their speeches after the first day = 90 - 60

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