subject
Mathematics, 29.03.2021 20:30 khaylaperry

Noah says that 9x−2x+4xis equivalent to 3x, because the subtraction sign tells us to subtract everything that comes after 9x. Elena says that 9x−2x+4xis equivalent to 11x, because the subtraction only applies to 2x.

Who is correct? And why are they correct?

Group of answer choices

Elena

Noah

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 13:20
What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.
Answers: 2
question
Mathematics, 21.06.2019 21:00
Need match the functions with correct transformation. f(x) = -3x f(x) = |x-1|+3 f(x) = √(x+3) 1/2x² f(x) = (x+1)²-3 4|x| 1. compress by a factor of 1/2 2. stretch by a factor of 4 3. shift to the left 3 4. shift to the left 1 5. shift up 3 6. reflection
Answers: 1
question
Mathematics, 22.06.2019 00:30
The mean average cost of standard room per night at a hostel is ? 20.60. therefore, how much does a standard room cost per night at night-time rest days?
Answers: 1
question
Mathematics, 22.06.2019 01:00
The graph shows how many words per minute two students read. drag to the table the unit rate that matches each graph.
Answers: 2
You know the right answer?
Noah says that 9x−2x+4xis equivalent to 3x, because the subtraction sign tells us to subtract everyt...
Questions
question
Mathematics, 03.12.2020 22:30
question
Mathematics, 03.12.2020 22:30
question
Arts, 03.12.2020 22:30
question
Mathematics, 03.12.2020 22:30
question
Health, 03.12.2020 22:30
question
Mathematics, 03.12.2020 22:30
Questions on the website: 13722367