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Warm-up: Solve for x.

Learn the importance of understanding the relationship between quantities and how unit conversions are performed. Solve examples involving time, distance, and speed conversions.

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Warm-up: Solve for x.

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  1. Warm-up: Solve for x. x = -12 x = 9 x = -7 x = 50

  2. Homework Review

  3. CCGPS Coordinate AlgebraDay 2 UNIT QUESTION: Why is it important to understand the relationship between quantities? Standard: MCC9-12.N.Q.1-3, MCC9-12.A.SSE.1, MCC9-12.A.CED.1-4 Today’s Question: How are unit conversions performed, and why is it important? Standard: MCC9-12.N.Q.1 and N.Q.2

  4. Example 1 1. Bob studied for 2.5 hrs. How many minutes did he study for? Initial unit = hr. Final unit = _______

  5. How many minutes are in 2.5 hours? Initial unit 2.5 hr Conversion Final factor unit 2.5 hr x 60 min = 150 min 1 hr cancel Answer (2 SF)

  6. Example 2 How many seconds are in 1.4 days? Unit plan: days hr min seconds 1.4 days x 24 hr x ?? 1 day LecturePLUS Timberlake

  7. Solution Unit plan: days hr min seconds 1.4 day x 24 hr x 60 min x 60 sec 1 day 1 hr 1 min = 120,960sec

  8. Example 3 John Isner serves 140 miles per hour. How fast is that feet per second?

  9. Solution 140 miles x 5,280 ft. x 1 hr x 1 min = 1 hr 1 mile 60 min 60 sec. = 205.3 ft/sec.

  10. Example 4 If a 3 day boating trip covers 150 miles and you are boating 5 hours a day, how many miles must you boat each hour? 10 miles per hour

  11. CW/HW Literal Equations & Dimensional Analysis WS

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