Review

7.1

200

Simplify the Expression

3(x+4)+2(x−5)

5x+2

400

Simplify the Expression

2(x+3)+3(x−4)+5

5x-1 

600

How do you find the MEAN?

Add all the numbers up, then divide by how many numbers you added. 

7.2

200

Simplify the Expression

5(x−2)+4(x+1)

9x-6

400

Simplify the Expression

4(x−2)−2(x+6)+3x

5x-20

600

How do you find the MODE?

The most common number.

7.3

200

Simplify the Expression

2(x+7)+6(x−3)

8x-4

400

Simplify the Expression

−3(x+5)+2(x−1)+7

−x−10

600

How do your find the MEDIAN?

Order the numbers least to greatest then identify the middle number.

7.4

200

Simplify the Expression

4(x−6)+3(x+2)

7x−18

400

Simplify the Expression

5(x−1)+3(x+2)−4(x−3)

4x+13

600

How do you find the range?

Largest number - smallest number.

7.5

200

Simplify the Expression

7(x+1)+2(x−8)

9x−9

400

Simplify the Expression

6(x+4)−2(x−5)+(x−7)

5x+27

600

How do you find the MAD?

1. find the mean. 2. subtract the mean from all the numbers. 3. Ignore the negatives. 4.add all the distances then divide by how many distances you added.