Choice 1:Population Model The population of bacteria in a culture grows at a rate proportional to the number of bacteria present at time t. After 4 hours it is observed that 600 bacteria are present. After 50 hours 5000 bacteria are present. what was the initial number of bacteria? 1) Give the ODE with the initial values. 2) Solve the ODE to get the particular solution that corresponds to the initial values 3) Give the initial number of bacteria.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...
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Choice 1:Population Model
The population of bacteria in a culture grows at a rate proportional to the number of bacteria present at time t. After 4 hours it
is observed that 600 bacteria are present. After 50 hours 5000 bacteria are present. what was the initial number of bacteria?
1) Give the ODE with the initial values.
2) Solve the ODE to get the particular solution that corresponds to the initial values
3) Give the initial number of bacteria.
Choice 2:Tank Mixture Model
A tank contains 100 liters of fluid in which 20 grams of salt is dissolved. Brine containing 3 gram of salt per liter is then pumped
into the tank at the rate of 2 L/min; the well-mixed solution is pumped out at the same rate. Find the number A(t) of grams of
salt in the tank at time t.
1) Give the ODE with the initial value.
2) Solve the ODE to get the particular solution that corresponds to the initial value
Choice 3: Temperature Model
A thermometer reading 60 °F is placed in an oven preheated to a constant temperature. Through a glass window in the oven.
door, an observer records that the thermometer reads 140° F after 1 minute and 220° F after 2 minutes. How hot is the oven?
1) Give the ODE with the initial values.
2) Solve the ODE to get the particular solution that corresponds to the initial values
3) How hot is the oven?
MacBook Pro
Transcribed Image Text:Choice 1:Population Model The population of bacteria in a culture grows at a rate proportional to the number of bacteria present at time t. After 4 hours it is observed that 600 bacteria are present. After 50 hours 5000 bacteria are present. what was the initial number of bacteria? 1) Give the ODE with the initial values. 2) Solve the ODE to get the particular solution that corresponds to the initial values 3) Give the initial number of bacteria. Choice 2:Tank Mixture Model A tank contains 100 liters of fluid in which 20 grams of salt is dissolved. Brine containing 3 gram of salt per liter is then pumped into the tank at the rate of 2 L/min; the well-mixed solution is pumped out at the same rate. Find the number A(t) of grams of salt in the tank at time t. 1) Give the ODE with the initial value. 2) Solve the ODE to get the particular solution that corresponds to the initial value Choice 3: Temperature Model A thermometer reading 60 °F is placed in an oven preheated to a constant temperature. Through a glass window in the oven. door, an observer records that the thermometer reads 140° F after 1 minute and 220° F after 2 minutes. How hot is the oven? 1) Give the ODE with the initial values. 2) Solve the ODE to get the particular solution that corresponds to the initial values 3) How hot is the oven? MacBook Pro
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