CHAP 4 REVIEW

Multiplyyourresultby10add16tothat

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Unformatted text preview: ing equations: SHOW ALL STEPS AND WORK. a. 3x - 8 = 55 b. 7 + 2x = 4x - 11 c. - 2(x + 3) = x d. 3(4 - 2x) = 24 e. 4x + 3 = 31 f. - 5 - y = 16 g. 4 - 2x = 16 h. 3x - 7 = 5x + 7 i. 4(3 - x) = - 6x 7) A teacher performs a magic trick with his class. He tells his class to pick a number (any number). Subtract 5 from the number. Multiply your result by 10. Add 16 to that product. Divide this by 2. And finally add 17. USING ONLY ALGEBRAIC NOTATION (pick x as your original number) walk your way through this trick and then describe how the final answer relates to the original number chosen by the student. 8) A drink and a sandwich together cost $6.00. The sandwich costs $2.30 more than the drink. How much does the sandwich cost? USE AN EQUATION TO SOLVE. 9) A pencil box and a notebook together cost $4.25. The notebook costs $1.25 more than the pencil box. How much does the notebook cost? USE AN EQUATION TO SOLVE. 10) A pencil box and a notebook together cost $2.10. The notebook costs 75¢ more than twice pe...
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