N - x 2) 3 students in a dormitory of 100 spread a rumor about the suspension of classes. After 2 minutes, 10 students heard the rumor. If the spread of the rumor per unit of time is jointly proportional to he number of students who heard the rumor and the number of students who haven't yet heard the rumor, determine how long it would take for 80 students to hear the rumor. Determine also the number of students who will hear the rumor in 10 minutes later.

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter8: Rational Expressions And Equations
Section8.9: Use Direct And Inverse Variation
Problem 8.175TI: The distance that Brad travels varies directly with the time spent traveling. Brad travelled 660...
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Find the Join Proportions for the following:

 

Formula: N-x
ceNkt
2) 3 students in a dormitory of 100 spread a rumor about the suspension of classes. After 2 minutes,
10 students heard the rumor. If the spread of the rumor per unit of time is jointly proportional to
the number of students who heard the rumor and the number of students who haven’t yet heard the
rumor, determine how long it would take for 80 students to hear the rumor. Determine also the
number of students who will hear the rumor in 10 minutes later.
Transcribed Image Text:Formula: N-x ceNkt 2) 3 students in a dormitory of 100 spread a rumor about the suspension of classes. After 2 minutes, 10 students heard the rumor. If the spread of the rumor per unit of time is jointly proportional to the number of students who heard the rumor and the number of students who haven’t yet heard the rumor, determine how long it would take for 80 students to hear the rumor. Determine also the number of students who will hear the rumor in 10 minutes later.
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