Rates Ratios and Proportional Reasoning

Scale is 1cm = 8km. Hatboro and Smithville are 24cm apart on the map, how far apart are they?

• 87 km

• 216 km 

• 33 km

• 192 km

Which ratio is equivalent to 12:20

• 20:12

• 2:3

• 3:5

• 3:10

How are rates and unit rates different?

• rate has a denominator of 1.  A unit rate does not.

• is just like a fraction.  A unit rate is a ratio.

• involve a measurement of time, but unit rates do not.

• compares two different quantities.  A unit rate has a denominator of 1.

Solve the proportion:

• 4

• 8

• 14

• 10

Solve the proportion.

• k=5

• k=45

• k=60

• k=90

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

Solve the proportion below

• 21

• 7

• 8

• 24

Solve the proportion below:

• 42

• 6

• 2

• 28

Which ratio is equivalent to 3:4

• 12:14

• 6:8

• 4:3

• 20:15

Which ratio is equivalent to 5 to 4

• 25 to 20

• 10 to 12

• 4 to 5

• 15 to 8