2. combine like terms
-21a + 16a
a.-5a
b.5a
c.37a
d.-37a...
Answers: 3
Mathematics, 21.06.2019 15:00
Which of these choices show a pair of equivalent expressions?
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Mathematics, 21.06.2019 15:00
Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
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Mathematics, 21.06.2019 19:30
Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left
Answers: 1
Mathematics, 21.06.2019 19:30
When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41
Answers: 1
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