Express each rate as a unit rate

1. 9 pages in 3 hours

2. 20 pounds for $4

3. a manatee surfaced the air 2 times in 60 seconds. in how many seconds will the manatee surface again if it continues taking breaths at the same rate?

1. Since 9 pages in 3 hours were read, we would find the greatest common factor (GCF) of both numbers, which is 3. So you do 9 divided by 3 (3) and 3 divided by 3 (1) which leaves you with the unit rate 3/1 or 3 pgs. p/ hr.

2. 20/4. The GCF of 20 and 4 is 4. So 20 divided by 4 is 5 and 4 divided by 4 is 1. Therefore leaving you with the unit rate 5/1 or 5 lb. p/ $.

3.  60/2. The GCF of 60 and 2 is 2. 60 divided by 2 is 30. 2 divided by 2 is 1. So the manatee can surface again in 30 seconds. 30/1 or 30 b. p/ sec.

Hope I helped! :)

1.75 or if it’s a fraction 1 3/4

Step-by-step explanation: