CPM Homework Help : CC2 Problem 3-75

The highest point in the United States is Mount McKinley, also called Denali, in Alaska. Its summit is $20,335$ feet above sea level. Badwater, a basin located in Death Valley, is the lowest point in the United States at $282$ feet below sea level. How high is the summit of Denali above the Death Valley location? Show your calculation using absolute value symbols.

Hint:

Think of sea level as $0$ , and the elevation above sea level as positive, while the elevation below sea level is negative. Then determine the distance between them as if the two values are on a number line.

Answer:

$20617$ feet