Mathematics, 30.07.2020 19:01 Jerryholloway5871
Four friends are working to solve the system of inequalities y>5x and x≥9. Izabella substitutes 9 for x and then concludes that y≥45, but her friends disagree. Each friend presents an argument to explain his or her reasoning. Part A: Whose argument is correct? Part B: What is the correct solution? Select one answer for Part A and one answer for Part B.
A: Ellis argues that because a solution must satisfy both equations, Izabella’s conclusion is incorrect. For example, if x=9, y must be greater than 5x, or 45. Thus, y≥45 cannot be the solution.
A: Maud argues that Izabella made a mistake in her substitution. She should have substituted 9 for y. This would give her 95>x. Thus, y≥45 cannot be the solution.
B: y≥45
A: Izabella’s argument is, in fact, correct.
B: x<95
A: Greyson argues that substitution is not a valid solution method for this problem. He claims that the only way to solve this problem is to graph it. Thus, y≥45 cannot be the solution.
B: y>45
B: The solution cannot be determined.
Answers: 1
Mathematics, 21.06.2019 21:00
Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h
Answers: 3
Mathematics, 21.06.2019 21:30
The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?
Answers: 3
Four friends are working to solve the system of inequalities y>5x and x≥9. Izabella substitutes 9...
History, 21.11.2019 07:31
English, 21.11.2019 07:31
Mathematics, 21.11.2019 07:31
Biology, 21.11.2019 07:31
English, 21.11.2019 07:31
Computers and Technology, 21.11.2019 07:31