Scribe post 12/14 Patrick

Today in class we went over the google document that is meant to help us prepare for finals. Jojo answered questions that people had about it and went over problems. I will do a few of them now:

Rational numbers are numbers that terminate. Irrational numbers do not terminate or repeat. An example of a rational number is 2/3 or 1/3. In decimal form 1/3 is .3333(repeating). An example of an irrational number is pi or 3.1415... pi goes on forever and does not stop.

Absolute value equations:

|2x-1|=7

2x-1=7 -(2x-1)=7

+1 +1 -2x+1=7

2x=8 -1 -1

x=4 -2x=6

x=-3

x=4 or x=-3

A number (v) plus 15% is 287.5

(1)v+.15(v)=287.5

1.15v=287.5

___ ____

287.5 287.5

v=250

250x.15=37.5

37.5+250=287.5

I guess this is the last scribe post of the term.