For number 38-40, choose which among the strategies is the most appropriate and the best strategythat must be employed in solving the following problems:38. A certain population of bacteria doubles every 10 minutes. If the number of bacteria in thepopulation initially was 104, what was the number in the population 1 hour later?A. Making a TableB. Working BackwardsC. Guess and CheckD. Formulation of an Equation using a Variable39. Geian went to the mall to shop. He went to a store, spent half of his money and then P500 more.He went to a second store, he spent half of his remaining money and then P500 more. He thenhad no money left. How much did he have to begin with when he went to the firststore?A. Finding a PatternB. Formulation of an Equation using a VariableC. Solving a Similar but a SimplerProblemD. Working Backwards40. Little Susie has three dolls with names Ann, Mary, and Stacy. Each of her dolls has a different colordress (Pink, Yellow, White), and each doll has a special feature (Cry, Sing, Talk).Using the clues below, determine which dolly has which color dress and what her feature is?Clues:I.The dolly named Ann is not wearing the pink or white dress.Little Susie's white dress matches the doll who talks, which is not named Mary.The doll that sings is dressed in a pink outfit.I.II.

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38. A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was 104, what was the number in the population 1 hour later? A. Making a Table B. Working Backwards C. Guess and Check D. Formulation of an Equation using a Variable

38. A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was 104, what was the number in the population 1 hour later? A. Making a Table B. Working Backwards C. Guess and Check D. Formulation of an Equation using a Variable

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

Question

For number 38-40, choose which among the strategies is the most appropriate and the best strategy
that must be employed in solving the following problems:
38. A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the
population initially was 104, what was the number in the population 1 hour later?
A. Making a Table
B. Working Backwards
C. Guess and Check
D. Formulation of an Equation using a Variable
39. Geian went to the mall to shop. He went to a store, spent half of his money and then P500 more.
He went to a second store, he spent half of his remaining money and then P500 more. He then
had no money left. How much did he have to begin with when he went to the firststore?
A. Finding a Pattern
B. Formulation of an Equation using a Variable
C. Solving a Similar but a SimplerProblem
D. Working Backwards
40. Little Susie has three dolls with names Ann, Mary, and Stacy. Each of her dolls has a different color
dress (Pink, Yellow, White), and each doll has a special feature (Cry, Sing, Talk).
Using the clues below, determine which dolly has which color dress and what her feature is?
Clues:
I.
The dolly named Ann is not wearing the pink or white dress.
Little Susie's white dress matches the doll who talks, which is not named Mary.
The doll that sings is dressed in a pink outfit.
I.
II.

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