Transcript
![Page 1: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/1.jpg)
Mystery Box
SE.4 Systems of Equations
![Page 2: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/2.jpg)
2
LAUNCHRecall how you solved “Coin Quandary”
![Page 3: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/3.jpg)
Mystery BoxYou will get a box with two
types of erasers.• Star erasers that cost 4¢
each• Pencil top erasers that
cost 3¢ each
DO NOT OPENYOUR MYSTERY BOX
![Page 4: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/4.jpg)
Mystery Box
![Page 5: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/5.jpg)
Mystery BoxWork individually.
![Page 6: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/6.jpg)
Mystery BoxCompare with a partner.
![Page 7: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/7.jpg)
Mystery Box
Let’s share.
What is your solution to the mystery?
![Page 8: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/8.jpg)
Mystery Box
It’s time to solve the mystery.Were you right?
OPEN YOUR MYSTERY BOX
![Page 9: Mystery Box SE.4 Systems of Equations. LAUNCH Recall how you solved “Coin Quandary” 2](https://reader035.vdocuments.site/reader035/viewer/2022062511/551af76e5503466b6a8b668f/html5/thumbnails/9.jpg)
©Evergreen Public Schools 2010
9
DebriefIn the system of equations, you wrote two equations.
• What does each equation count?
• When defining your variables, you need to be more specific than “x = star erasers”. What do you need to add to your definition of x?