Presentation on theme: "7.RP.2a Day 1 Objective: I can determine if two quantities are proportional."— Presentation transcript:
7.RP.2a Day 1 Objective: I can determine if two quantities are proportional.
Car A drives 60 miles in one hour, car B drives 120 miles in 2 hours, and car C drives 190 miles in 3 hours. Which car is going the fastest? Discuss with your group and be ready to explain your answer.
Notes Pizza12345 Cost ($)$8 Constant ratios
Notes Two quantities are proportional if they have a constant (same) ratios. Heartbeats 50 beats per minute What would be proportional to that?
Notes Hours1234 Earnings ($)18365472 Constant ratios Are they proportional?
Notes Hours1234 Earnings ($)18425681 Constant ratios Are they proportional?
Notes Uptown tickets charges $7 per baseball game ticket plus a $3 processing per order. Is the cost of an order proportional to the number of tickets ordered?
Notes At the beginning of each year, Isabel had $120 in the bank. Each week, she deposits another $20. Is her account balance proportional to the number of weeks of deposits? Use the table below. Time (weeks)1234 Balance ($) Are the proportional?
Notes Martin’s pages246 Time (minutes)51015 Constant ratios Jim’s pages347 Time minutes)51015 Constant ratios
Notes Page 37 #4. Work together as a group to solve this problem. Be ready to share your answer with the class. **Plants and their heights, three comparison charts.