Answer:
[tex]0\text{ feet}[/tex]
Step-by-step explanation:
GIVEN: Eve takes a subway train to work that travels at an average elevation of [tex]-14[/tex] feet. Jacob takes a bus to work that travels at an average elevation [tex]14[/tex] feet higher than eves train.
TO FIND: Average elevation the bus travels at.
SOLUTION:
Average elevation of subway train [tex]=-14\text{ feet}[/tex]
Now,
Jacob takes a bus to work that travels at an average elevation [tex]14\text{ feet}[/tex] higher than that of subway train.
Average elevation of bus [tex]=\text{Average elevation of subway train}+14[/tex]
putting the value
Average elevation of bus [tex]=14+(-14)[/tex]
[tex]=14-14=0\text{ feet}[/tex]
Hence the average elevation at which the bus travels at is [tex]0[/tex] feet or ground level.