STAAR Review: Equations and Inequalities

37. A principal has given a class $75 to help pay for a field trip to a zoo. The students in the class are selling pies for $5 each to earn the rest of the money they need. The field trip will cost a total of $386.

    Which inequality can be used to find p, the number of pies the class needs to sell in order to earn enough money to pay for the field trip?

• 0. 5p+75 ≤ 386

• 0. 5p+75 ≥ 386

• 0. 75p+5 ≥ 386

• 0. 75p+5 ≤ 386

The greatest weight a moving truck can carry is 1,600 pounds. The truck is loaded with a piano that weighs 400 pounds. Boxes that weigh 50 pounds each will also be loaded into the truck.

Which inequality represents all possible values of x, the number of these boxes that can be loaded into the moving truck?

• 6. 50x + 400 ≤ 1,600

• 6. 50x + 400 ≥ 1,600

• 6. 400x + 50 ≤ 1,600

• 400x + 50 ≥ 1,600

Which number line represents the solution to the inequality 3x - 8 ≥ 7?

• A

• B

• C

• D

Which number line represents the solution to the inequality 125x + 200 ≥ 1,200?

• A

• B

• C

• D

Which situation is best represented by the following equation? 68.50x+127.95 = 675.95

• 1. An office manager paid $675.95 to build a web site. The office manager bought a software package for $68.50 and paid an employee $127.95 for each hour she worked on the website. What is x, the number of hours the employee worked on the website?

• 1. An office manager paid $675.95 for computer equipment. The office manager bought one monitor for $127.95 and hard drives for $68.50 each. What is x, the number of hard drives the office manager bought?

• 1. A sales manager paid $675.95 for advertising. The sales manager paid $127.95 per hour for consulting and received a $68.50 discount. What is x, the number of hours the manager paid for consulting?

• 1. A business owner paid a total of $675.95 for two employees to work the same number of days. The business owner paid one employee $68.50. The business paid a second employee $127.95 per day. What is x, the number of days the employees worked?

Which situation can be represented by this equation? 250 + 65x = 575

• 6. Jeremy is traveling to a location that is 575 miles away. He has already traveled
     250 miles. What is x, the number of hours that Jeremy will need to travel at a speed of 65 miles per hour to reach the location?

• 6. Jeremy is traveling to a location that is 575 miles away. He has already traveled
     250 miles. What is x, the number of additional miles that Jeremy will need to travel to reach the location?

• 6. Jeremy is reading a book with 575 pages. He has already read 65 pages and will read 250 pages per day. What is x, the number of days that Jeremy will need to read to finish the book?

• Jeremy is reading a book with 575 pages. He has already read 315 pages. What is x, the number of pages Jeremy has left to read to finish the book?

34. The model represents an equation.
    What is the solution for the equation?

What is the solution set for the inequality 4 − 5g > 39?

• g > −7

• g < −7

• g < 7

• g > 7