subject
Mathematics, 08.01.2020 03:31 brennarfa

Eduardo solved the following inequality, and his work is shown below:

−5(x + 4) + 21 ≥ −3 + 4(x − 8)
−5x − 20 + 21 ≥ −3 + 4x − 32
−5x + 1 ≥ 4x − 35
−9x ≥ −36
x ≥ 4

a) when dividing by −9, he did not change the ≥ to ≤.
b) he subtracted 4x from both sides when he should have added 5x.
c) he subtracted 1 from both sides when he should have added 36.
d) he did not make a mistake.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 13:10
What is the greatest common factor of 8 and 36
Answers: 2
question
Mathematics, 21.06.2019 18:00
Need on this geometry question. explain how you did it.
Answers: 1
question
Mathematics, 21.06.2019 21:30
Ok a point t on a segment with endpoints d(1, 4) and f(7, 1) partitions the segment in a 2: 1 ratio. find t. you must show all work to receive credit.
Answers: 1
question
Mathematics, 22.06.2019 02:30
Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation
Answers: 1
You know the right answer?
Eduardo solved the following inequality, and his work is shown below:

−5(x + 4) + 21 ≥...
Questions
question
English, 19.11.2020 16:40
question
Mathematics, 19.11.2020 16:40
question
Biology, 19.11.2020 16:40
question
Social Studies, 19.11.2020 16:40
question
Mathematics, 19.11.2020 16:40
question
Physics, 19.11.2020 16:40
question
History, 19.11.2020 16:40
question
Biology, 19.11.2020 16:40