Monday, September 18, 2006

801& 802 QUIZ tomorrow (803 quiz Weds.)

Study your homework and notes from last week on combining polynomails with addition and multiplication. Know the inverse operations and how to solve a simple one or two step equation. Review the problem from today's do now since you will certainly see it again.

IMPORTANT PROCESS TO KNOW FOR QUIZ
QUESTIONS > If the perimeter of quadrilateral ABCD is 63 inches find the shortest side (x) when side AB is 3x + 1, side BC is x, side CD is 3x and side AD is x + 6.
SOLVING
1. Add all the sides since and set it equal to the given perimeter. (perimeter is when you add all sides so that's why you add)
3x + 1 + x + 3x + x + 6 = 63
2. Combine like terms on the left side.
3x+x+3x+x+1+6=63
8x + 7 = 63
3. Use inverse operations to solve for x.
8x + 7 = 63
(subtract 7 from each side)
8x = 56
(divide each side by 8)
x=7