Answer:
D. The elevation of sea level is 5 km and the elevation of the summit is 10 km.
Step-by-step explanation:
Please give me brainliest'
I think
This is your typical algebra question where you are looking for an unknown value given some information. The information can be set up as:
8 - x = 4*(x +3)
Distribute the 4:
8 - x = 4x + 12
Rearrange to get variables on one side:
8 - 12 = 4x + x
Simplifiy:
-4 = 5x
Isolate the variable:
-4/5 = x
I think it is 989 or 899
*3 digit number*
*26 sum*
Last two digits are the same
