Answer:
10 pages can he type in 2.5 hours
Step-by-step explanation:
Unit rate defined as the rates are expressed as a quantity as 1 such as 3 meter per seconds or 2 miles per hour.
As per the statement:
Brian can type 1 1/3 pages every 20 minutes.
Number of page he type = [tex]1\frac{1}{3} = \frac{4}{3}[/tex]
then by definition of unit rate:
[tex]\text{Unit rate per minutes} = \frac{\frac{4}{3} }{20} =\frac{4}{3} \cdot \frac{1}{20}=\frac{1}{15}[/tex] pages
Use conversion:
1 hour = 60 minutes.
Then;
[tex]\text{Unit rate per hour} = \frac{1}{15} \cdot 60 = 4[/tex] pages.
We have to how many pages can he type in 2.5 hours.
[tex]\text{Number of pages he type in 2,5 hours} = \text{Unit rate per hour} \times 2.5[/tex]
Substitute the given values we have;
[tex]\text{Number of pages he type in 2,5 hours} = 4 \times 2.5 = 10[/tex]
Therefore, 10 pages can he type in 2.5 hours
