Ratio and Proportion

Which ratio is different from the others?

• 8 to 15

• 15:8

• 8:15

• $\frac{8}{15}$

In the word 'BALLOONS', the ratio of vowels to consonants is:

• $\frac{3}{5}$

• 3 to 5

• 5:3

• $\frac{8}{5}$

If Joey earns 675 for 6 hours of work, what is Joey's unit rate per pay?

• 675 per week

• 528 per day

• 112.5 per hour

• 102.5 per hour

In a math class the ratio of boys to girls is 15 to 8. If there are 16 girls in class, how many boys are there?

• 45

• 30

• 35

• 40

On a map, 1cm represent 250 km. How many kilometers does 7 cm represent?

• 1750

• 1570

• 1770

• 1550

A truck is carrying pear juice, cherry juice, and apple juice bottles in a ratio of 3:1:3. If there are 16 cherry juice bottles, then how many juice bottles in total are there?

• 112

• 315

• 405

• 225

The ratio of girls to boys in a chess club was 5:4. There were 32 boys. How many girls were there in the club?

• 40

• 45

• 35

• 36

Explain the difference of ratio and proportion.

Explain how you can determine if

 $\frac{8}{24}and\ \frac{3}{9}$  form a proportion.

Can you explain a second (different) way to show the proportionality of 

 $\frac{8}{24}and\ \frac{3}{9}$