Ch.8-9 test - Part II. Solve each of the following...

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Elementary Algebra Fall 2000 Name ____________________________ Test 1 DM 0084 Ch. 8 and Ch. 9 Problems 1 - 20 are worth 3 points each. Put your answer in the box. Only the answer in the box will be graded. Be careful. 1. Simplify: -14 – 12 + 5 2. Simplify: 10 y - 5(4 + 3 y ) 3. Simplify: - + 27 3 4 4. Simplify: x + 28 +2 y - 5 x - 35 5. Write with a positive exponent: 25 7 - 6. Evaluate and round to the nearest thousandth (if necessary). 20 1 3 7. . If f x x x ( ) = + 2 3 , find f ( ) - 2 8. Simplify: - F H G I K J ÷ F H G I K J 4 5 8 9

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9. Simplify: 10 2 20 4 5 3 1 ( ) ( ) - - - + - 10. Solve: 3 x = 39 11. Solve: 18 = -5 y 12. Solve: - x = 3 13. Solve: 12 1 4 = x 14. Solve: - = - 3 4 5 8 x 15. Solve: x – 7 = 24 16. Solve: 3 + x = 7 17. Solve: 5 – 3 x = 32
18. Solve: 2( x – 4) = 18 19. Write a symbolic interpretation for the following: nine is equal to twice a number subtracted from six ”. Do not solve . 20. Solve: 5 + 3(x – 1) = 10

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Unformatted text preview: Part II. Solve each of the following problems, showing all work where appropriate. Partial credit is possible on this part of the test. 21. (6 pts) Solve: 5 x 3 = 2 x 22.(7 pts) Solve: 7x + 4 = 2x - 9 23.(8 pts) 7 3(2 x + 4) = 9 24.(9 pts) 2(5 x + 6) 5 = 2(2 x 4) 25. (10 pts) Set up an equation and use it to solve the following problem. You must set up an equation in order to get credit. Olivia purchased a used biology textbook, a speech pathology textbook, and a graphing calculator. The speech pathology book cost \$35 more than the biology book and the graphing calculator cost twice as much as the biology book. Olivias total bill, before tax, was \$215. How much did the graphing calculator cost?...
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This note was uploaded on 06/29/2008 for the course MATH 1070 taught by Professor Beale,angela during the Fall '08 term at University of Colorado Denver.

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Ch.8-9 test - Part II. Solve each of the following...

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