slide 1
A Goobook Studios Production
EQUATIONS
Date October 9,2015 class period 4 names Tysen,Zane,Graham
slide 2 objective
Objective Is for us to create a Google Presentation to demonstrate conceptual knowledge of writing and solving equations, and we’ll use knowledge we have gained from the first 9 week period.We will also use the real numbers property, and the properties of equality.
Definition for equation = a statement that values of two mathematical expressions are equal indicated by equal sign =.
slide 3 demanstration
4x=⅖
¼ x 4/1 x = ⅖ x ¼
x = 2/20
x=10
You have 4 so you would put one under the four so it looks like this 4/1. Then multiply it by ¼ which is the multiplicative inverse, and you have to do it to the other side too.
slide 4 demanstration
x-¼=⅖
x-5/20 = 8/20 Get a common denominator
+5/20 +5/20 8/20 + 5/20 = 13/20
x=13/20 The addition property of equality is shown by add 5/20 to both sides.
Slide 5 demanstration
15-⅔ x=20
-⅔ x=5 -3/2 x -⅔ x=5/1 x 3/2 = 15/2
x=-7.5
You used subtraction property of equality by subtracting 15 from both sides. You used multiplicative inverse by multiplying -⅔ times -3/2. Then you do it to the other side to multiplying 5/1x-3/2.
slide 6 demanstration
5-2(x-3)=-23
5-2x+6=-23
-6 -6 5-2x=-29
-5 -5 -2x divided by -34
x=17 You used distributive property by multiplying -2 x x and -2 x -3. Division property of equality is show by -2x divided by -2 and -2 divided by -34
Example Slide 7
Prince Fielder has hit 20 home runs and he hits 2 every game. Josh Hamilton hit 25 home runs he hits 1 every game. In how many games will they have the same amount of homeruns?
Slide 8 answer for slide 7
20+2x=25+1x
-1x -1x
20+1x=25
-20 -20
1x=5
x=5
You used subtraction property of equality by subtracting 20 from both sides.