Question

The elevation of city A is 60 feet above sea level; the elevation of city C is 12 feet above sea level. The elevation of city D is 1 over 2 of the elevation of city C.

Part A: Write an expression to represent the elevation, in feet, of city D.

Part B: Solve the expression and explain why the answer is negative or positive.

Answer 1

So split the prompt into parts
The elevation of city A is 60 feet above sea level; -- A = 60
the elevation of city C is 12 feet above sea level -- C = 12

The elevation of city D is 1 over 2 of the elevation of city C

Answer 2

thank you

Answer 3

Part B: Solve the expression and explain why the answer is negative or positive.

Answer 4

Well we already know what C is, so you can just substitute

Do you know how to do that?

Answer 5

no

Answer 6

The question said C is 12ft above sea level, so simply change C for 12

Do you know how to solve that?

Answer 7

no

Answer 8

can u explain to me how you got a positive number

Answer 9

Sea level is always 0

Anything `above` sea level is positive

Anything `below` sea level is negative