Record and Practice Journal Answer Key - RUSD Math

Record and Practice Journal Answer Key Copyright Big Ideas Learning, LLC Big Ideas Math Algebra 1 All rights reserved. Answers 1 Chapter 1 Fair Game Review 1. 4 2. 12 3. 8 4. 8 5. 7 6. 7 7. 6 8. 12 9. 58 F 10. 2 floors 11. 10 12. 15 13. 30 14. 16 15. 6 16. 8 17. 3 18. 8 19. $60 20. 7 groups Activity 1. 2. a. The sum of the angle measures of a triangle i s 180 . b. Answer should include, but is not limited to: The sum of the angle measures of each triangle should be 180 . Some might be a little off due to rounding. 3. a. 27 82180; 71xx++== b. 43 52180; 85xx++== c. 77 180; ++== d. 180; ++== 4. Sample Answer : If you notice a pattern, you can use inductive reasoning to write a rule.

x +=− +=− − +=− +=− = − = − 1.3 Practice 1. x = 2 2. y = −9 3. p = 10 4. g = 41 5. n = 0.7 6. w = 11 7. 100 10 15 ; 20+= =xxx 8. 200 1.3 Extension 1. xorx==3 3− 2. xorx==5 3 3. x = 0 4. xorx==3 4− 5. 8 4 3 xorx==− 6. no solution 7. xorx= −1 4= − 8. 17 22 xorx==− 9. xorx==7 1 10. xorx==1 7− 11. x − 41.5= 1.4 ...

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