Extended response practice answers
- 1. Homework Aim: Final Review • Study for Final • Return Textbook and Do Now Calculators CHECK 1
- 2. 1. Melissa sailed her sailboat 12 kilometers due north, and 11 kilometers due east. Then she sailed straight back to her starting point. Part A To the nearest kilometer, what was the total distance she sailed? Answer: ___________________ Part B On the lines below, explain how you found the total distance Melissa sailed. 2
- 3. Practice Question #2 Marilyn can buy a video game console for $76.00 and rent a game for $2.00 a day, or she can rent both for $4.00 a day. How many days would Marilyn have to rent both to pay as much as she would if she had bought the console and rented the game instead? The equation below can be solved to find d, the number of days 4d = 76 + 2d Part A Solve the equation for d. Show your work. Part B Check your solution form Part A by substituting your value for d into the equation 4d = 76 + 2d. Show your work. 3
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- 10. 6) A student factors x + 18x + 45 and gets ( x + 5)(x + 9) as the answer. Part A Use Double Distribution to check the student’s work. Part B Factor x + 18x + 45 correctly. 10
- 11. 7) Solve and check the following equation. 5x + 10(8 x) = 65 11
- 12. Show your work. 8) Part A Find (4x + 7) + (5x 3x + 6 ) Part B Find (3x + 6x + 7) (5x 4x + 10) 12
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