Survey
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
McDougal Littell Pre-Algebra Solve the equation. Check your solution. 16. 7 1. – 9 x – 7 – 34 17. p 2. 5 9 16 x 27 5 m 1 1 2 Solve the equation. Check your solution. 3. 3x 2 – 22 4. 7n 10 9n 18 18. 5 y64 8 1 19. 1 a 29 25 2 5. 18 = 9(x + 2) 6. 5 = 2(x – 1) + 4 - x 7. 2(4x – 4) = x + 4 20. 3x 36 . 9 21. –3.4x – 0.3 = 1.4 8. 3(x + 2) + 3 = 4(x – 4) + 4 9. x + 2 = 5(4x – 1) Write an inequality to represent the situation. 10. A sprinter can run the race in more than 11.5 seconds. 11. Thomas can type at most 65 words per minute. 12. Solve the inequality. Then graph its solution. x 3 < 33 . 22. A car-rental company charges a flat fee of $195 and $0.20 per mile to rent a popular model of a sports-utility vehicle. If the total cost to rent the vehicle for a 5-day ski trip was $495, how many miles were driven? 23. The maximum weight allowed per car on The Wildcat carnival ride is 280 pounds. Your friend weighs 140 pounds. To be able to ride in a car together how much can you weigh? Write and solve an inequality. 24. Solve the inequality. Then graph the solution. 13. x 3 5 25. 14. – 7 x 63 15. – 3 x 6 15 McDougal Littell, a division of Houghton Mifflin Company Form 1 Page 5 McDougal Littell Pre-Algebra [1] 3 [2] 64 [3] –8 [4] –4 [5] 0 [6] 3 12 [7] 7 [8] 21 7 [9] 19 [10] s 115 . [11] t 65 [12] x < 6.3 6 7 8 9 [13] x 15 5 10 [14] x –9 15 –10 –5 [15] x –7 –10 –5 20 0 0 25 5 5 10 10 [16] x 100 –102 –100 –98 –96 –94 [17] m 4 –10 –5 0 5 10 [18] 16 [19] 36 [20] 1.8 [21] -.5 [22] 1500 mi [23] x 140 280 ; at most 140 pounds [24] -7/27 [25] 2 1/3 or 7/3 McDougal Littell, a division of Houghton Mifflin Company Form 1 Page 5