# Im not so good at math :/ So can someone help me please an thank you.?

Question 1 (Multiple Choice Worth 4 points)

[6.01] The graph of a system of parallel lines has no solutions.

Always

Sometimes

Never

Question 3 (Multiple Choice Worth 5 points)

[6.02] Use the Substitution Method to solve the following system of equations.

4x + y = 11

x + 2y = 8

(3, 2)

(2, 3)

(-2, -3)

(-2, 3)

Question 5 (Multiple Choice Worth 5 points)

[6.06] Tori works two jobs to pay for college. She tutors for $30 per hour and also works as a receptionist for $10 per hour. Due to her class and study schedule, Tori is only able to work up to 20 hours per week, but must earn at least $200 per week. If t represents the number of hours Tori tutors and r represents the number of hours she works as a receptionist, which system of inequalities represents this scenario?

t + r 20

30t + 10r = 200

t + r 20

30t + 10r 200

t + r 20

30t + 10r = 200

t + r 20

30t + 10r 200

Question 7 (Multiple Choice Worth 5 points)

[6.02] Fun Land theme park has a total of 110 males and females who are employed at the park. If the number of males is 10 more than three times the number of females, how many males are employed at the park?

25

50

30

85

Question 8 (Multiple Choice Worth 5 points)

[6.05] An airplane flew 3.5 hours with a 60 mph head wind. The return trip with a tail wind of the same speed took 2.5 hours. Find the speed of the plane in still air.

320 mph

340 mph

360 mph

380 mph

Question 9 (Multiple Choice Worth 5 points)

[6.03] Auditions for a play in New York were held with 120 men and women trying out for the lead singer position. If twice the number of men less three times the number of women is equal to 20, how many men auditioned?

44

40

76

80

Question 10 (Multiple Choice Worth 5 points)

[6.05] Your piggy bank has a total of 20 coins in it; some are dimes and some are nickels. If you have a total of $1.25, how many nickels do you have?

15

10

5

20

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.

### 3 Answers

- ranjankarLv 77 years agoBest Answer
1) ALWAYS

3) 4x + y = 11

x + 2y = 8

y = 11-4x

x + 2 (11-4x) = 8

x + 22 -8x = 8

-7x = -14

x = 2

y = 3

ANSWER ( 2,3 )

5) t + r = 20

30t + 10r = 200 ANSWER

7) Females = x

Males = 10+3x

ADD 10 +4x = 110

4x = 100

x = 25

Males = 85 ANSWER

8) Let the speed of plane in still air be x

3.5 ( x- 60) = 2.5 ( x+60)

3.5x - 210 = 2.5x + 150

x = 360 mph ANSWER

CHECK

3.5 ( 360-60) = 1050 miles

2.5 ( 360+60) = 1050 miles

9) Let the no of men be x and women be y

x+ y = 120

2x- 3y = 20

3x +3y =360

ADD

5x = 380

x = 76

y = 44

ANSWER 76 men

- Anonymous7 years ago
1) always

3) (2,3)

5) t + r 20

30t + 10r = 200

7) 30