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Aim # 16: How Do We Solve Problems Involving Uniform Motion?

Aim # 16: How Do We Solve Problems Involving Uniform Motion?. Do Now. How many mL of pure water must be added to 67 mL of a 35% saline solution to result in a solution that is 22% saline? [Round your answer to the nearest hundedth of a mL. ].

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Aim # 16: How Do We Solve Problems Involving Uniform Motion?

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  1. Aim # 16: How Do We Solve Problems Involving Uniform Motion? Do Now How many mL of pure water must be added to 67 mL of a 35% saline solution to result in a solution that is 22% saline? [Round your answer to the nearest hundedth of a mL.]

  2. Aim # 16: How Do We Solve Problems Involving Uniform Motion? Do Now Let x = the # of mL of pure water that must be added. NOTE: Pure water has 0% salt.

  3. Aim # 16: How Do We Solve Problems Involving Uniform Motion? Do Now Let x = the # of mL of pure water that must be added. Answer: 39.59 mL of pure water must be added to the original mixture.

  4. Minilesson: Where:

  5. Minilesson (cont’d): 4 types of problems we will be looking at . . .

  6. Minilesson (cont’d): Opposite Directions, Away. Opposite Directions, Towards.

  7. Minilesson (cont’d): Opposite Directions, Away. Total Distance

  8. Minilesson (cont’d): Opposite Directions, Towards. Total Distance

  9. Minilesson (cont’d): Same Direction, but one car is faster. Difference of Distances

  10. Minilesson (cont’d): One car goes the same distance but in a shorter time span. Same Direction, but one car is faster. Total Distance

  11. Minilesson (cont’d): For the word problems you are currently responsible for: Do NOT fall into the following trap: When the question asks “What is the distance?” we do not use “d” as the variable. Instead, after solving for “r” or “t” we multiply rt to find the distance in question.

  12. Guided Practice Handout, Side 1, qq. 1, 5 Handout, Side 2, qq. 19, 23

  13. Independent Practice Handout, Side 1, qq. 2, 9 Handout, Side 2, qq. 20, 24

  14. HW # 15 Due WEDNEsday Our Textbook, p. 324, qq. 9--14 Answers on next page

  15. HW # 15 Due WEDNEsday Our Textbook, p. 324, ANSWERS 9) 25 L 10) 30 mL 11) 3 g 12) 15 kg of the $5; 25 kg of the $5.80 13) 8 kg dried apples; 12 kg dried apricots 14) 80 ₵ per Liter

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