practice 5
Subject:
Review ?Sheet ?for ?AP ?Biology ?Practice ?6 ?? ?Scientific ?Explanations ?and ?Theories ?Contributed ?by ?Winnie ?Litten ?? ?YouTube ?-?? ?/mslittenbiology ?Twitter-??@mslittenbiology ?
Abstraction
Review ?Sheet ?for ?AP ?Biology ?Practice ?6 ?? ?Scientific ?Explanations ?and ?Theories ?Contributed ?by ?Winnie ?Litten ?? ?YouTube ?-?? ?/mslittenbiology ?Twitter-??@mslittenbiology ?
practice 1
Subject:
? Review ?Sheet ?for ?AP ?Biology ?Practice ?1 ?? ?Models ?and ?Representations ?Contributed ?by ?Winnie ?Litten ?? ?YouTube ?-?? ?/mslittenbiology ?Twitter-??@mslittenbiology ?
Algebra Fill In Notes 2.2
Subject:
02.02 Two-Variable Equations Essential Questions How can we create equations in two or more variables to represent relationships between quantities? How can we represent constraints by equations or inequalities and interpret solutions as viable or nonviable options in the model? Main Idea (page #) DEFINITION OR SUMMARY EXAMPLE Two-Variable Equations p.2 Steps to solving problems Read and understand the situation within the word problem. Identify and pull out ______________ ______________ from the problem. Assign ____________to unknown values. Set up and solve the equation. Check that your answer makes sense within the context of the problem. Consecutive integer problems p.2 Label the first integer with x, the next with x + 1, the next with x + 2, and so on.
Solving Systems by Substitution
Subject:
A good way to solve systems of equations is by substitution. In this method, you solve on equation for one variable, then you substitute that solution in the other equation, and solve. Example:
1. Problem: Solve the following system:
x + y = 11
3x - y = 5
Solution: Solve the first equation for y
(you could solve for x - it
doesn't matter).
y = 11 - x
Now, substitute 11 - x for y
in the second equation. This gives
the equation one variable, which
earlier algebra work has taught
you how to do.
3x - (11 - x) = 5
3x - 11 + x = 5
4x = 16
x = 4
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!
