Equations/Inequalities

Which inequality goes with the statement "You can spend at most $30"?

• x ≤ 30
• x < 30
• x ≥ 30
• x > 30

Which inequality goes with the statement "You must be at least 57 inches tall to join the Navy"?

• x ≤ 57
• x < 57
• x ≥ 57
• x > 57

The solution to 1/4x = 8 is

• 32

• ½

• 2

• 12

The solution to x - 2.3 = 17 is

• 14.7
• 19.3
• 40
• 6

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Which equation would be used to find how many feet the tree grew?

• f + 8 = 14

• f - 8 = 14

• f/8 = 14

• 8f=14

Sally bought three candy bars for a total of $18.00. How much did each candy bar cost? Write an equation to solve this problem. Use c as your variable.

• c/3 = 18

• c + 3 = 18

• c/18 = 3

• 3c = 18

350 students are a part of the middle school band. They represent 1/5 of the students at the school. Write an equation to find the total number of students at the school.

• x/5 = 350

• 5x = 350

• 350 ÷ 1/5 = x

• x ÷ 1/5 = 350

Which problem situation matches the equation 18x = 360

• Taylor sold 360 newspaper subscriptions each month for 18 months. What is x, the total number of newspaper subscriptions that Taylor sold in 1 year? 
• Brett cycled a total of 360 miles this month. She cycled 18 miles less this month than last month. What is x, the number of miles Brenna cycled last month?
• Austin charges $18.00 per hour for labor to paint houses. What is x, the number of hours Austin worked if she charged $360.00 for labor?
• Sara bought 18 ride tickets and x game tickets. How many game tickets did she buy if she bought 360 tickets in all?

Choose the dependent quantity from the graph:

• Number of Athletes

• Cost of Climbing Shoes

• Not enough information given

When do you need to change your inequality symbol?

• this is a trick question...there is never a scenario where you would change your inequality symbol

• before you solve each inequality

• only when you move the variable to the right side

• only when you move the variable to the left side