Elevation Rational Numbers

What is the change in elevation from the overlook to the benches?

• -26 1/4 feet

• 26 1/4 feet

• 113 3/4 feet

• -113 3/4 feet

Use the positive numbers to represent elevations above sea level and negative numbers to represent elevations below sea level. Mary's elevation is 6.5 meters at the beginning of a hiking trail. After walking a few minutes, she has descended 12.2 meters. Which of the following represents her new elevation?

• -18.7

• 5.7

• -6.3

• -5.7

Will Smith and his family are going on a hiking trip. They gained 128 feet during their hike and are currently at an elevation of 106 feet but they aren't sure of their starting elevation. Write and solve an equation to find their starting elevation. Choose ALL that apply.

• e + 128 = 106; e = -22

• e - 128 = 106; e = 22

• 106 - 128 = e; e = -22

• 106 + (-128) = e; e = -22

• 128 - 106 = e; e = 22

The elevation of New Orleans is -0.3 meters.

What does an elevation of -0.3 meters represent in this situation?

• New Orleans is 0.3 meters above sea level.

• New Orleans is at sea level.

• New Orleans is 0.3 meters below sea level.

A hiker begins climbing Mt. Kilimanjaro at an elevation of 4,593 feet above sea level. After 7 days, the hiker reaches the summit, which is 19,340 feet above sea level. Two days later, the hiker has descended to the other side of the mountain and is now at an elevation of 5,500 feet above sea level. Which of the expressions below best represents the hiker's change in elevation over the course of the hike?

• 4593 + 5500

• 4593 - 5500

• 4593 + 14747 - 13840

• 4593 + 19340 - 5500

• 4593 + 15253 - 14240

Lucas is visiting Desert Shores, California. Desert Shores is 200 feet below sea level. The night after his visit, Lucas went to his friend's house that is 32.5 feet above sea level. What number can be used to represent the elevation of his friend's house?

• 200

• -200

• 32.5

• -32.5

What is the best definition for a rational number?

• a number that can be written in the form p/q, where p and q are integers.

• a number that an be written in the form q/p, where p and q are fractions.

• a number that can be written in the form p/q, where p and q are odd numbers

What is the difference in elevation between 3 feet above sea level and 20 feet below sea level?

• 23 feet

• -23 feet

• 17 feet

• -17 feet

Lester was hiking up Mount Rainier and stopped at an elevation of 124.56 ft. Unfortunately, a strong gust of wind made him lose his footing. Lester then sank to the bottom of Reflection Lake which was 17.3 ft below sea level. What was the change in elevation from where Lester fell to where he sank to?

• 141.86 ft

• 107.26 ft

• 124.56 ft

• 17.3 ft

A number that can be expressed as a fraction.

• rational number

• integer

• whole number

• zero