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Two-Step Equations
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Two- Step Equations
Random Trivia
200

m-9=-13

m=-4

200

v/8=2

v=16

200

156=6+10y

y=15

200

41 = 4w + 5

w=9

200

6x  + 8 = 50 

x=7

200
How are sedimentary rocks formed?

Through compaction and cementation of sediments.

400

18+m=8

m=-10

400

10n=80

n=8

400

(a-6)/2=7

a=20

400

-1=(-9+x)/-3

x=-5

400

x/2-7=9

x=32

400

Where were Corey and Nadir's rocks found?

Corey's in Great Plains

Nadir's in Rocky Mountains

600

15+b=23

b=8

600

-126=14k

k=-9

600

-13=b/3-10

b=-9

600

127 = -1 - 8h

h=-16

600

2x - 5 = 11

x=8

600
Describe the physical model we created in class. What did it represent?

Crushed jolly ranchers compacted together by books and cemented together by sunlight represents sedimentary rock.

800

m-9=-13

m=-4

800

16=k/11

k=176

800

-9v - 2 = 25

v=-3

800

(a-9)/2=7

a=20

800

11=x/-5+8

x=-15

800
Define compaction and cementation.

Compaction: pressing together

Cementation: gluing together

1000

-15+n=-9

n=6

1000

-17x=-204

x=12

1000

-2+p/7=-4

p=-14

1000

3=(n+7)/-3

n=-16

1000

13 = -4x + 9

x=-1

1000

What are the two claims?

1: One rock formations split

2: Old rock minerals went to new rock.