B 2. Lesson 2-5 Problem Solving 1. Answers will vary. Lesson 4 Problem-Solving Practice Solve Equations with Variables on Each Side Write and solve an equation to solve each exercise. 1 2 = 0.5 1 4 = 0.25 1 0.3 3 = 3 4 = 0.75 = 2 0.6 3 So, = 2 0.6 3. 520 2. Life science ... Key Concept Builder LESSON 1 ... Key Concept How can a scientist prevent bias in a scientific investigation? How long must a a. Which decimal equivalent of a common fraction would you use to rewrite 1 1 4 as a decimal? 9 lb b. Reread the text to clarify the meaning of the terms. 1. Problem 2 Problem 3 1. 401 8 3. a. Reading Essentials Scientific Problem Solving NOS 1 Answer Key Name: _ Date: _ RATES, PATTERNS AND PROBLEM SOLVING … Question Answer 1. Branches of Science 1. _____ 2. 8 5. a. $643.51 4. a. Unit B Homework Helper Answer Key Lesson 2-1 Solving Two-Step Equations 1. Lesson 4-1 Exploring Scientific Notation 1. 8.1 … 50 hr b. In 2008, the population of the US was about 304,090,000 and the National debt was about $10,024,724,896,912. D b. 5. a. Step 1 : Substitute the values from the problem into the Rate formula. Set up a division problem using. Add (3.6 \times 10^7 + 5.1 \times 10^7) and write your answer in scientific notation. Write your answer in scientific notation. 123.32 mi 4. a. B. Directions: Answer each question in the space provided. Problem 1 Think about decimal equivalents of common fractions to rewrite 2 3 as a decimal. This lesson is a fun introduction to the open-ended, collaborative, and creative problem solving students will be using over the rest of this unit and course. Scientists use reliable skills and in problem solving. C 5.a. A b. PLUMBING Al Plumbing Service charges $35 per hour plus a $25 travel charge for a service call. ˜84 2. 27 in. Rate = Distance / Time to represent the situation. Scientific Problem Solving Scientific Inquiry 3TUDY#OACH Building Vocabulary Work with another student to write a question about each vocabulary term in this lesson. 3. A 3. B b. View Unit-1.Lesson-1.Rates-Patterns-and-Problem-Solving.doc from MAT 105 at John Jay College of Criminal Justice, CUNY. Good Guys Plumbing Repair charges $40 per hour for a service call with no travel charge. D b. Solution : Key points : The answer is the number of kilometers per year that the Sun travels around the Milky Way. 2 14 0.000000452 15 11,235,000,000 16 How are the answers to problems 6, 8, 12, and 14 similar? The paper towers problem could easily be substituted out for any number of other problems that require students to define their goals, devise a plan, try a solution, evaluate their results, and then iteratively improve from there. Answer the questions and compare your answers. D 4. Add ( 3.6 \times 10^7 + 5.1 \times 10^7 ) and write your Answer scientific. 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