Algebra
In algebraic terms . . .
Submitted by oscar on Thu, 05/07/2009 - 01:15
Below are some example graphs of common equations and inequalities that you are likely to encounter.
Linear equations can be presented to you in various ways and by the same token you can solve a linear equation a number of ways. The first step in solving a linear equation is determining the slope.
Here is a list of ways to arrive at the slope.
1.) Given a graphed line, choose two points on the line. Count the rise on the y-axis over the run on the x-axis. Essentially, the slope, m, = rise/run.
2.) Starting with the coordinates of two points on line (x<
Submitted by oscar on Mon, 03/16/2009 - 00:56
The following situation requires you to create 30 mL of a solution that contains 10% acid. You have an abundance of 5% and 20 % acid solutions on hand to create the 30mL 10% solution with. The question is, how many mL of each solution should be mixed together to form the 30mL 10% solution?
We can express the paragraph above by saying: 30mL of 10% solution equals x mL of 20% solution plus y mL of 5% solution.
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