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 18:30
Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³
Answers: 1
Mathematics, 22.06.2019 00:00
Abook store is having a 30 perscent off sale. diary of the wimpy kid books are now 6.30 dollars each what was the original price of the books
Answers: 1
Mathematics, 22.06.2019 00:30
Find the values of the variables and the lengths of the sides of this kite.
Answers: 3
Four friends are working to solve the system of inequalities y>5x and x≥9. Izabella substitutes 9...
Social Studies, 07.07.2019 05:00
Social Studies, 07.07.2019 05:00
Social Studies, 07.07.2019 05:00
Social Studies, 07.07.2019 05:00
History, 07.07.2019 05:10
Biology, 07.07.2019 05:10
Business, 07.07.2019 05:10
Mathematics, 07.07.2019 05:10
Mathematics, 07.07.2019 05:10
Mathematics, 07.07.2019 05:10