Ms. Boyd



Name: ___________________________ Date: ____________________________ UNIT 7 LESSON 10AIM:SWBAT write two variable equationsTHINK ABOUT IT! Jocelyn reads for 45 minutes every day. She wants to determine the total number of minutes she will read for any number of days. She used the variables d, for the number of days she reads, and t, for the total number of minutes she reads over any number of days. Identify the independent and dependent variables in this situation Independent variable: ________________________________________________Dependent variable: ________________________________________________Create a table to show how many minutes she has read in five daysWrite an equation to model the relationship between d and t. Explain how you came up with the equation.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Key PointInteraction with New MaterialEx.1) Jose earns $9 per hour at his part-time job. Write an equation to represents the amount of money Shawn earns after working for any number of hours.Ex.2) Niome started with $200 in her savings account. She decided to add $40 per month. What equation could Daisy use to figure out the total amount in her savings account after any number of months? 38216070CFS for top quality workProblem is annotated with margin notes to provide additional meaning Independent and dependent variables are clearly identified and defined with clear justification (as needed)Table is createdAll calculations are shownEquation is written00CFS for top quality workProblem is annotated with margin notes to provide additional meaning Independent and dependent variables are clearly identified and defined with clear justification (as needed)Table is createdAll calculations are shownEquation is writtenPARTNER PRACTICEBachelor LevelSarah is purchasing pencils to share. Each package has 12 pencils. Let n represent the number of pencils and p represent the number of packages of pencils Sarah purchased. Determine which variable is dependent and which is independent. Make a table showing the number of pencils purchased for 3-7 packages. Then, write an equation to represent the relationship between the number of packages purchased and total number of pencils.Independent Variable: _______________________________________________________Dependent Variable: _______________________________________________________Number of packages, pTotal number of pencils, nEquation: ___________________________________________Master LevelDesiree was given 5 sea shells. Each week she collected 3 more. Let w be the number of weeks and s be the number of sea shells she has total. Which variable is independent and which is dependent? Make a table to show how many shells she has from week 4 to week 10. Then, write an equation to model the relationship.Independent Variable: _______________________________________________________Dependent Variable: _______________________________________________________Equation: _______________________________________41700452540CFS for top quality workProblem is annotated with margin notes to provide additional meaning Independent and dependent variables are clearly identified and defined with clear justification (as needed)Table is createdAll calculations are shownEquation is written00CFS for top quality workProblem is annotated with margin notes to provide additional meaning Independent and dependent variables are clearly identified and defined with clear justification (as needed)Table is createdAll calculations are shownEquation is writtenINDEPENDENT PRACTICEBachelor LevelAndrew wants to buy a new electronic book that costs $5.50. He has several different coupons that discount the e-book by different amounts from an online book store. The amount of the different discounts he has for the coupons can be represented with c and the discounted price, in dollars, is d. Name the independent and dependent variables. Create a table to show how much Andrew will pay for books for discounts ranging from $1 through $5. Write an equation to represent the relationship between the original cost of an electronic book and the discounted price. Independent Variable: _______________________________________________________Dependent Variable: _______________________________________________________Discount, cDiscounted cost, dEquation: ___________________________________________Explain how you came up with your equation____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Master Level A taxi cab service charges a flat fee of $2.50 plus an additional $1.25 per mile. Show the relationship between the total cost and the number of miles. Write an equation to model the relationship.Brianna wants to start saving money. She started with $50 and then each month add $20. Which equation represents how much Brianna will have saved up, t, after a certain number of months, m?t = 20 + 50mt = 50 + 20mt = 20 · 50mm= 20 + 50mFor every hour that Aylin babysits, she charges $13. Write a ratio to represent the relationship between the number of hours she baby sits and the total amount she charges. Write an equation to represent the relationship between the number of hours Aylin baby sits and the total amount she charges. Explain the relationship between the ratio and equation you wrote for parts A and B.__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Write an equation to represent the relationship between p and d Equation: _______________________________Name: ______________________________Date: _______________________EXIT TICKETSelf-assessmentI mastered the learning objective today.I am almost there. Need more practice and feedback.Teacher feedbackYou mastered the learning objective today.You are almost there. You need more practice and feedback.For each problem, determine the independent and dependent variables, make a table with five values that models the situation, and write an equation to represent the situation.Kyla spends 60 minutes of each day exercising. Let ? be the number of days that Kyla exercises, and let ? represent the total minutes of exercise in a given time frame. Show the relationship between the number of days that Kyla exercises and the total minutes that she exercises2) A taxicab service charges a flat fee of $8 plus an additional $1.50 per mile. Let m represent the number of miles traveled and c represent the total cost of the cab. Select all of the statements below that are true.a) Miles is the dependent variableb) Total cost is the dependent variablec) If you go 2 miles, you spend $11d) The equation m = 8 + 1.5 c represents the scenarioe) The equation c = 8 + 1.5m represents the scenario ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download