Im not gooa at math can someone help me please?

Question 11 (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 $390. How many sophomores bought... show more Question 11 (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 $390. How many sophomores bought tickets?

100

90

60

30

Question 12 (Multiple Choice Worth 4 points)

[6.02] For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation?

-x - 2y = -4
3x + y = 12

-2y - 4

2y - 4

2y + 4

-2y + 4

Question 13 (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 $27.00 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

30

150

300

Question 14 (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 15 (Multiple Choice Worth 5 points)

[6.05] Two cars leave town going in opposite directions. One car is traveling 40 miles per hour (mph), and the other car is traveling 20 mph. How long will it take before the cars are 300 miles apart?

2 hours

3 hours

4 hours

5 hours

Question 16 (Multiple Choice Worth 5 points)

[6.06] Which point lies in the solution set for the following system of inequalities?
y < 2x + 4
y < -2x + 2

(1, 0)

(-5, -2)

(0, -3)

(-1, 5)

Question 18 (Multiple Choice Worth 5 points)

[6.03] Solve the following system of equations.
3x - 2y = 6
6x - 4y = 12

(0, 0)

(6, 12)

Infinitely Many Solutions

No Solutions

Question 19 (Multiple Choice Worth 5 points)

[6.03] What is the value of the x variable in the solution to the following system of equations?
7x - 2y = 21
4x + y = 57

21

-21

9

-9

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 = 13
2x + y = 2

Part 2:
Explain which method you chose to solve the system and why you felt it was the best choice.
2 answers 2