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