Respuesta :
Answer:
19 kilometers
Step-by-step explanation:
2.5 kilometers + 7kilometers
= 9.5 kilometers
+ the additional 9.5 for the trip down
=19 kilometers in total
Stacey total distance for climbing was 16.5 km
Stacey started 2.5 km up the cliff so this 2.5km is not counted as she started at that point.
She then climbed 7 km up the cliff.
After that she climbs back down to the bottom of the cliff. This time she climbs both the 7km she climbed previously, and the 2.5km she hadn't climbed before.
Tracy total climbing distance is:
= Distance climbed up + Distance climbed down
= 7 + ( 7 + 2.5)
= 7 + 9.5
= 16.5 km
In conclusion, Stacey climbed 16.5 km in total.
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