Math 263: Chapter 1 (Algebra, Mathematical Models, and Problem Solving)

Section 1.1

Section 1.2

This video has two examples. The second is more challenging. Pay close attention in the second example - make sure you understand why we can't begin with 7-3!

This problem has a tricky absolute value in it!

This video has lots of fraction subtraction help as well as some important reminders about order of operations.

Here's another fraction subtraction video!

Section 1.3

Section 1.4

This equation is not as challenging as it looks - you just need to remember that we multiply by the reciprocal when we divide by a fraction!

Section 1.5

In this problem, we are given the perimeter of the rectangle and the relationship between length and width and we are asked to find the dimensions.