august 23, 2016
TRANSCRIPT
![Page 1: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/1.jpg)
Today:
Practice Problems: Translations, One-Step Equations
A Closer Look at the Khan Academy
Reminder: CW1.1 Due Today for full credit
Classwork Grading Criteria
08/23/16
New Vocabulary: (2)
![Page 2: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/2.jpg)
2. Like Terms:
Vocabulary:
In algebraic expressions & equations, like terms are terms that contain the same variables raised to the same power. Only the coefficients of like terms can be different.
1. Coefficient:
Examples include: 7x x -2x
()xy2 -2y2x 6xy2
Adding & Subtracting like terms is just combining the coefficients.3x - 2x = 2x2 + 5x =
![Page 3: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/3.jpg)
![Page 4: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/4.jpg)
Registered
Students:
![Page 5: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/5.jpg)
Coaching the Khan Academy:
Practice Problems Section of your
Notebook
![Page 6: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/6.jpg)
5(173 + 32)
![Page 7: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/7.jpg)
64 -150
58
![Page 8: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/8.jpg)
Write an expression to represent: Three minus the quotient of a number
and six.
Write an expression to represent: Three less than three times a number x.
Translating Expressions
![Page 9: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/9.jpg)
Practice Problems: Translating Equations
1. Buck has $20 more than Roger. Together they have $90.
How much does each one have?
2. Peter has $6 more than Meg. Chris has $18 more than Peter. They have $84 all together. How much does each one have?
3. The sum of 3 consecutive numbers is 87. What are the three numbers?
Key Concept: Always Assign the variable to the smallest, least, lightest, shortest, etc. Every other number is shown by its relationship to the variable.
4. Jay worked 6 hours less than May. Together they worked 64 hours. How many hours did each work?
![Page 10: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/10.jpg)
Solving One-Step Equations:
1. n + 6 = 12
Pencils Down; Mental Math Only!!
2. 56 = 7x
3. y - 17 = 41
4. = 4 **6. = 45. 8m = 48
Last Slide
![Page 11: August 23, 2016](https://reader036.vdocuments.net/reader036/viewer/2022070513/5884e7371a28ab4b778b7201/html5/thumbnails/11.jpg)