How to find the time with rate proportional equation

How to find the time with rate proportional equation

Assessment

Interactive Video

Mathematics, Business

11th Grade - University

Hard

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The video tutorial explains how to determine the time it takes for the amount of oil pumped under a well to decrease to one-fifth of its current value, given a continuous decrease rate of 10% per year. The instructor discusses the initial and final values, the rate of decrease, and how to solve for time using logarithms. Various methods to express the solution are explored, emphasizing understanding different approaches to the problem.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial problem discussed in the video?

Calculating the cost of oil production

Finding the maximum oil production rate

Determining the time for oil production to decrease to 1/5 of its current value

Calculating the increase in oil production

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is a 10% decrease in oil production rate expressed as a growth rate?

110%

100%

80%

90%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What simple number is used to represent the initial value in the calculations?

0.5

2

1

5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical function is used to solve for the time it takes for the oil amount to decrease?

Exponential function

Quadratic function

Logarithmic function

Linear function

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a possible way to express the solution to the problem?

Using a geometric sequence

Using logarithms with different bases

Using a linear equation

Using a quadratic equation