1. Tickets for a concert are $2 for students and $5 for adults and 500 tickets were sold. The concert made $1,450. How many student tickets were sold ?

a. 350
b. 150
c. 315
d. 135

2. Which expresses all of the solutions for the compound inequality.
8

Question

1. Tickets for a concert are $2 for students and $5 for adults and 500 tickets were sold. The concert made $1,450. How many student tickets were sold ?
 
a. 350 
b. 150 
c. 315 
d. 135 

2. Which expresses all of the solutions for the compound inequality. 
8<2(x+11)<30
 
a. 19/2<x<41/2
 b. 15<x<26
 c. -3/2<x<19/2
 d. -7<x<4
 
3. Using the discriminant how many real and imaginary solutions are there for 4x^2-4x+1=0
 a. 1 real solution, no imaginary solutions
 b. 2 real solutions, no imaginary solutions
 c. no real solutions, 2 imanginary solutions 
d. 1 real solution, 1 imagi

hero · Answer

Hint for #1:

x = students
y = adults

x +  y = 500
2x + 5y = 1450

hero · Answer

Solve for x

hero · Answer

Hint for #2:
8<2(x+11)<30
8 < 2x + 22 < 30
8 - 22 < 2x < 30 - 22
-14 < 2x < 8
-14/2 < x < 8/2

Finish the last step from there