It already got the answers on it.
Step-by-step explanation:
Show work for each. 10 points.
1. Which represents the solution for the inequality 3x -7 > 5?
A. x < 4 B. x<4 C. x > 4 D. x>4
2. Describe the graph for question #1.
A. Open circle on 4, shade to the right. B. Open circle on 4. Shade to the left.
C. Closed Circle on 4 Shade to the right. D. Closed Circle on 4. Shade to the right.
3. Which represents the solution for the inequality -7x +42<28
A. x >-10 B. x < -10 C. x < 2 D. x > 2
4. Describe the graph and solution set for question #3.
A. Closed circle on -2, Shade to the left {-2,-3,-4,…}
B. Open circle on -2, Shade to the right. {-2,-1,0,…}
C. Closed circle on 2, Shade to the right. {2,3,4,…}
D. Open circle on 2, shade to the left {…,0,1,2}
5. The 30 members of a choir are trying to raise at least $1,500 to cover the travel
costs to a singing camp. They have already raised $600. Which inequality could
you solve to find the average amounts that each member can raise that will at
least meet the goal?
A. 30x + 600 > 1,500 B. 30x +600> 1,500 C.30x +600 < 1,500 D. 30x +600 <1,500
6. What is the solution to question #5?
A. x >90, more than $90 per member.
B. x >30, more than $30 per member.
C. x > 30, $30 or more per member.
D. x < 30, $30 or less per member.
7. How would you graph the solution to question #5 on a number line?
A. Closed circle on 90 and shade to the right.
B. Open circle on 30 and shade to the right.
C. Open circle on 30 and shade to the left.
D. Closed circle on 30 and shade to the right.
8. Amy is having a birthday party at a roller skating rink. The rink
charges a fee of $50 plus $8 per person. If Amy wants to spend at
most $170 for the party, how many people can she invite? (Write the
inequality, then solve it.)
A. 50x + 8 < 170; x <3.24, 3 people or less.
B. 8x + 50 > 170; x> 15, 15 or more people.
C. 8x + 50 < 170; x< 15, 15 or less people.
D. 8x + 50 < 170; x<15, less than 15 people.
9. Chang has at most $160 to spend on socks and sneakers. He finds a
pair of sneakers that the he likes for $95. If socks are $3 per pair, how
many pairs could Chang buy?
A. 8 pairs or less B. 20 pairs or more.
C. 22 pairs or less D. 21 pairs or less.
10. The booster club needs to raise at least $7,000 for new football uniforms. So
far, they have raised $1,250. Write an inequality to find the average amount each
of the 92 members can raise to meet the club’s objective.
A. 92x +1,250 < 7000; Less than 62.5.
B. 92x +1,250 < 7000; $62.50 or less.
C. 92x +1,250 > 7000; $62.50 or more.
D. 92x +1,250 > 7000; More than $62.50.
Extra Credit (5 points)
11. A long distance company charges $1.01 for the first 25 minutes of a
call, and then $0.09 for each additional minute. A call cost $9.56. How
long did it last?
A. 95 Minutes. B. 120 minutes. C. 80 minute D. 106 minutes.
