Respuesta :
You first divide 25 by 20 = 25/20= 1.25 That means it takes her 1 minute and 25 seconds to do one question. (unit rate) Then you multiply 1.25 by 50 which equals 62.5 so it'll take her 62 minutes and 30 seconds so B is your answer :)
We have that the total time be for her to complete the worksheet is mathematically given as
x=62.5minutes
Time
Question Parameters:
Keisha is working on a math worksheet with 50 problems.
She has completed 20 problems in 25 minutes.
Generally has completed 20 problems in 25 minutes.
20=25
50=x
Therefore
[tex]x=\frac{5-*25}{20}[/tex]
x=62.5minutes
For more information on Time visit
https://brainly.com/question/4931057