3. Each quarter weighs 0.2 ounces. How much money has been stolen from the bank?

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1 Name: Bell: Clues Sheet Dear Detective, Someone has robbed the National Bank in Washington D.C. It is your job to use the clues left by the perpetrators to locate and apprehend the robber. Your tools will be your power of deduction and your mathematical knowledge. Good luck cracking this case! Sincerely, Captain P. Thagoras Clue 1 1. One surveillance camera was able to capture the image on the next page. The image shows the thief standing next to the door. In real life the door measures 84 inches but it is only 16.8 centimeters in the picture. If the person in the photo is cm tall, how tall is suspect in real life? Report the height in feet and inches. Clue 2 2. The robber stole only pounds of quarters out of the coin machine. Quarters are weighed in ounces. If there are 16 ounces in 1 pound, how many ounces of quarters were stolen? 3. Each quarter weighs 0.2 ounces. How much money has been stolen from the bank? Clue 3 4. A witness at the bank saw the getaway car stop at a nearby gas station. The gas station attendant said that the thief's tank was practically empty, and that he filled it completely. Luckily, he was also able to find the thief s receipt. Determine how many gallons of gas the thief purchased.

2 5. The getaway car was a. The car gets miles per gallon of gas. If the car continued until it ran out of gas again, how far could it go? Clue 4 6. Using only one tank of gas, what is the farthest city that the thief can reach?

3 Suspect List 1. Below is a list of possible suspects, their heights, where they were arrested, and how much stolen money they had. Use the answers from the Clue Sheet to select the culprit. 2. Write a letter to the Captain explaining who you think is the thief. Make sure to justify your answer by explaining how you came to your decision. Dear Captain, Using the clues you have given me, I have deduced that is the person that robbed the bank. I know this because

4 Reflection Questions 1. How did you know when to use a proportion to solve a problem? 2. If you did not use a proportion, how did you solve the problems? 3. What are some things in real life that would have affected the answers you got? 5. Does it matter what variable you choose to represent the missing value? Extension Questions 1. Working backwards! Choose a different suspect from the suspect list (name) Now use the given information to develop your own set of clues that would make that suspect the thief. The perpetrator is cm tall in the security camera image. pounds of quarters were stolen. The getaway car was a silver 1989 HN Cosine which travels miles per gallon of gas 2. The thief had some accomplices to help him pull off the crime. The original plan was to split up the money. The thief was to receive 65% of the loot. Accomplice A was to receive 30% of what was left. Accomplice B was to receive 15% of what is left after Accomplice A and the thief each get their share. Accomplice C gets the rest. Students should calculate how much each accomplice gets.

5 Group 2 Clues The perpetrator is 13.2 cm tall in the security camera image. 25 pounds of quarters were stolen. The getaway car was a silver 2014 Bugatti Veyron which travels 9 miles Group 4 Clues The perpetrator is 13.2 cm tall in the security camera image. 25 pounds of quarters were stolen. The getaway car was a silver 2008 Volkswagen GTI which travels 25 miles Group 1 Clues The perpetrator is 15 cm tall in the security camera image. 25 pounds of quarters were stolen. The getaway car was a silver 2013 Ford F150 which travels 16 miles

6 Group 3 Clues The perpetrator is 13.2 cm tall in the security camera image. 32 pounds of quarters were stolen. The getaway car was a silver 2010 Hummer H1 which travels 8 miles Group 5 Clues The perpetrator is 15 cm tall in the security camera image. 32 pounds of quarters were stolen. The getaway car was a silver 2013 Ford F150 which travels 16 miles Group 6 Clues The perpetrator is 15 cm tall in the security camera image. 32 pounds of quarters were stolen. The getaway car was a silver 2010 Hummer H1 which travels 8 miles

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