Question

Adding and Subtracting with Rational Numbers

Answer 1

Answer:

Part A

Net change is the change compared to zero level

• From positive 2.2 feet to negative 2.4 feet

Part B

The distance between the elevations

• 2.2 + 2.4 = 4.6 feet

Part C

• 10 feet

Part D

• 8.2 feet

Part E

Positive elevation brings the level close to the deck

• 8.2 - 2.2 = 6 feet

Part F

Negative elevation takes the level apart from the elevation of the surf shop

• 10 - (-2.4) = 12.4 feet
• The surf shop was higher

Answer 2

Answer:

Answers :-

Part A

It changed from 2.2 ft to -2.4 ft

Part B

Distance between elevation => Ocean elevation A + Ocean Elevation B = 2.2 + 2.4 = 4.6 ft

Part C

Winston ate dinner at a restaurant whose deck was 10 feet above the ocean’s surface.

Part D

In the sentence "Winston went to a surf shop that was 8.2 feet above the ocean’s surface". So, 8.2 ft

Part E

Height of shop - Height of elevation at top

=> 8.2 - 2.2 = 6 ft

Part F

12.4 ft is the height of surf shop

Surf shop was Higher