John Muir was an American naturalist born in Scotland on April 21, 1838. As one of the first advocates of the United States' wilderness preservation, Muir spent his career writing letters, essays and books about many of his experiences in the Sierra Nevada mountains, located in northern California. Muir's influence on the history of American wilderness continues to live on past his death (in the early twentieth century) as people of all ages visit and hike through the 221 miles of the John Muir Trail, named in Muir's honor. The trail begins in Yosemite National Park and concludes at Mount Whitney, which contains the highest peak of the continental United States.

The following table compares Mount Whitney"s height, in meters, to other monumental peaks of the world.

Mountain Location Height (in meters)
of Highest Peak
Mount Whitney California, United States 4,418.38 meters
Mount Fuji Fuji-Hakone-Izu National Park, Japan 3,775.86 meters
Mount Everest Great Himalayas of southern Asia 8,849.87 meters
Mount Kilimanjaro Tanzania, Africa 5,894.83 meters
Mount Olympus Mytikas, Greece 2,919.07 meters
Use the data in the table to complete Parts A, B, and C. In your final answers, include your work for all estimates and calculations.

Part A:

Use scientific notation to estimate the following:
How many times greater is Mount Everest's highest peak than Mount Olympus's?

Part B:

Use scientific notation to calculate the following:
How many times greater is Mount Everest's highest peak than Mount Olympus's?

Part C:

Given the calculation in Part B comparing the highest peaks of Mount Everest and Mount Olympus, can you conclude that the estimate in Part A is reasonable? Answer in complete sentences.

3 answers

Part A:

To estimate how many times greater Mount Everest's height is compared to Mount Olympus's height using scientific notation, we first need the heights in scientific notation:

  • Mount Everest:

    • Height = 8,849.87 meters
    • In scientific notation, this is approximately \( 8.85 \times 10^3 \) meters.
  • Mount Olympus:

    • Height = 2,919.07 meters
    • In scientific notation, this is approximately \( 2.92 \times 10^3 \) meters.

Next, we estimate the ratio:

\[ \text{Ratio} \approx \frac{8.85 \times 10^3}{2.92 \times 10^3} \]

We can simplify this by dividing the coefficients and cancelling out \(10^3\):

\[ \text{Ratio} \approx \frac{8.85}{2.92} \approx 3.03 \]

Thus, \( \text{Ratio} \approx 3.03 \).

The estimated ratio in scientific notation is approximately:

\[ 3.03 \times 10^0 \quad \text{(or simply, 3.03)} \]

Part B:

Now, we calculate the exact ratio using the actual heights:

\[ \text{Ratio} = \frac{\text{Height of Mount Everest}}{\text{Height of Mount Olympus}} = \frac{8849.87 \text{ m}}{2919.07 \text{ m}} \]

Using actual values, we perform the division:

\[ \text{Ratio} \approx \frac{8849.87}{2919.07} \approx 3.03 \]

To get the precise value, the calculation is:

\[ \text{Ratio} \approx 3.03 \]

Converting this into scientific notation:

\[ \text{Ratio} \approx 3.03 \times 10^0 \quad \text{(or simply, 3.03)} \]

Part C:

To conclude whether the estimate in Part A is reasonable, we compare both the estimated result and the calculated result.

In Part A, we estimated that Mount Everest is approximately \(3.03\) times greater than Mount Olympus. In Part B, we found the exact ratio to be roughly the same, \(3.03\). Since both the estimate (in Part A) and the calculation (in Part B) arrive at a similar value, we can conclude that the estimate in Part A is reasonable. This consistency between our rough estimate and the exact calculation demonstrates that our initial calculations were quite accurate.

can you make it a little less advanced and not all the symbols and slashes

Sure! Let's simplify the explanations without the advanced symbols and equations.

Part A:

To estimate how many times greater Mount Everest's height is compared to Mount Olympus's height, let's start by looking at their heights:

  • Mount Everest is about 8,849.87 meters tall.
  • Mount Olympus is about 2,919.07 meters tall.

Now, we can express these heights in simpler scientific notation:

  • Mount Everest: approximately 8.85 x 10³ meters
  • Mount Olympus: approximately 2.92 x 10³ meters

To estimate how many times taller Mount Everest is, we can divide the heights:

  1. Divide the main numbers: 8.85 / 2.92, which is roughly 3.03.
  2. Since both heights have the same power of ten (10³), we can say the estimate is approximately 3.03.

So, in summary, we estimate that Mount Everest is about 3.03 times greater than Mount Olympus.

Part B:

Now, let's find the exact number for how many times greater Mount Everest is by using the actual heights:

  1. Take 8,849.87 meters (Mount Everest's height).
  2. Divide it by 2,919.07 meters (Mount Olympus's height).

Doing the math gives us a result of approximately 3.03.

So, the exact calculation shows us that Mount Everest is also about 3.03 times greater than Mount Olympus.

Part C:

Now, let's evaluate if our estimate from Part A was reasonable compared to the exact number we found in Part B.

Since both the estimate from Part A and the exact calculation from Part B give us very similar results (both about 3.03 times greater), we can confidently say that our estimate was indeed reasonable. The closeness of the two numbers shows that our initial guess was accurate.

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