Unit 2&3

Variable

100

X+2=20

18

200

X+x=6

3+3

300

4x+1x=

5x

400

90x+-10x=

80x

Ratio

100

There are 15trumpets, 6flutes, and 10 drums what is the ratio for flutes to drums

6:10

200

There are 5 blue cars and 6 red cars what is the ratio for red cars to blue cars.

6:5

300

There are 98 females  2 males 6 aliens what is the ratio for females to aliens

98:6

400

There are 6 cats three die there are also 20 dogs 9 die what is the ratio for cats to dogs

3:11

Proportion

100

This graph is proportional True or False?

2 4

3 6

4 8 

5 10

True

200

1 2.  6 ?       What is the missing number?

2 4

3 6

4 8

5 10

12

300

3 5  Is this graph porportional?

4 6

5 8

6 9

No

400

There are 24 students and each want 2 cookies. If you graph it will it be proportional?

No

Inverse operation

100

3x=15 What does x equal

5

200

8x=64 What does x equal.

8

300

7x=63 what is x?

9

400

5x=125 What is x?

25

Mixed Category

100

What is the ration for 20 pencils to 10 pens

20:10

200

X+10=21

11

300

9x=81

9

400

Are porportions always equal

Yes