Need Help WIth ALgebra Pleasee?

Question 1 (Multiple Choice Worth 5 points) [6.05] An airplane flew 3 hours with a 40 mph head wind. The return trip with a tail wind of the same speed took 2 hours. Find the speed of the plane in still air. 180 mph 200 mph 220 mph 240 mph Question 9 (Multiple Choice Worth 4 points) [6.01] The graph of a system of equations will intersect at exactly 1 point. Always Sometimes Never Question 11 (Multiple Choice Worth 5 points) [6.06] Which point lies in the solution set for the following system of inequalities? y > x + 4 y > -x + 2 (1, 6) (-2, -1) (-3, 2) (1, 1) Question 12 (Multiple Choice Worth 5 points) [6.02] Use the Substitution Method to solve the following system of equations. x - 4y = 1 2x - 9y = 3 (-1, -3) (-3, 1) (3, 1) (-3, -1) Question 14 (Multiple Choice Worth 5 points) [6.05] There were 150 freshman and sophomores at the high school musical Reese and her friends attended. Freshman tickets were $2.00 each and sophomore tickets were $3.00 each. The receipts for freshman and sophomore tickets totaled $400. How many sophomores bought tickets? 100 50 75 25 -------------------------------------------------------------------------------- Question 15 (Multiple Choice Worth 5 points) [6.03] What is the value of the y variable in the solution to the following system of equations? 5x + 3y = 7 3x - 5y = -23 -1 1 -4 4 -------------------------------------------------------------------------------- Question 16 (Multiple Choice Worth 5 points) [6.05] Trevor's dad decided to get him a cell phone for his birthday. Cell Plus has a plan that costs $24.00 per month plus an additional $0.06 per minute. Cell Best has a plan that costs $30.00 per month plus an additional $0.05 per minute. How many minutes can Trevor talk and both cell plans cost the same amount? 600 60 300 120 Question 18 (Multiple Choice Worth 5 points) [6.03] Solve the following system of equations. x - 2y = 6 2x - 4y = 10 Infinitely Many Solutions No Solutions (0, 0) (6, 10) Question 20 (Essay Worth 8 points) [6.02] and [6.03] Part 1: Solve the following system of equations. Please show your work to receive full credit. x - y = 16 2x + y = 2 Part 2: Explain which method you chose to solve the system and why you felt it was the best choice.

1) Do your own homework.

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