Ratios and Proportions

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Will spent $3.78 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $1.26 per pound

• $1 per pound

• $2 per pound

• $1.50 per pound

Jenny has 3 guitars. Steve has 4 guitars. If the ratio of guitars is 4:3, who is first in the ratio?

• Jenny

• Steve

• It doesn't matter

• Andy Griffith

Solve for x 

• x = 15

• x = 11

• x = 1/11

• x = 20

The table shows the weight in pounds of objects on earth compared to objects on the moon.  If an object on earth weighs 42 lbs, what is its weight on the moon?

• 7 lbs

• 12 lbs

• 84 lbs

• 252 lbs

An elevator moves at a constant rate of 18 feet in 3 seconds. A second elevator moves at a constant rate of 40 feet in 5 seconds.

The situation ​ ​ (a)   a proportional relationship because ​ (b)  

• does not represent

• the ratios are different

• represents

• the ratios are equivalent

 Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

• 1
• 3

Solve the proportion:

• 4

• 8

• 14

• 10

A class is attended by 16 boys and 32 girls. Write the ratio of GIRLS to BOYS as a fraction in SIMPLEST FORM.