Ratios Proportional

5/6 = x/24

Solve for x.

• 15

• 18

• 12

• 20

3/4 = y/16

Solve for y.

• 12

• 9

• 8

• 10

7/9 = z/27

Solve for z.

• 21

• 18

• 24

• 28

2/5 = a/15

Solve for a.

• 6

• 5

• 8

• 10

Are the two ratios proportional?

• YES

• NO

Is the pair of ratios proportional?

• yes

• no

Two quantities are in a ​ (a)   if the two quantities vary and have a constant ratio between them.

• proportional relationship

• proportional

• unit rate

• nonproportional

• constant of proportionality

When two ratios are equal they are .

(a)  

• Proportional

• Ratio

• Rate

• Unit Rate

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