Answer:2.744
Step-by-step explanation:
Suppose that this person drives at r mph going to the mountains, and gets there in 12 hours. Returning, this person drives at (r+20) mph and gets home in 8 hours. We don't know the distance yet, but can solve for the initial speed, r, by setting
d = 12r = (r+20)(8). Solving for r, r=40 mph (going) and (40+20)mph = 60 mph (returning. Since d=12 r, d = (12 hrs)(40 mph) = 480 miles (answer).
Answer:
6
Step-by-step explanation:
12/2=6
Hope it helps......
Answer:
-2
Step-by-step explanation:
Its in the negative zone and its saying that it increased by one, so -2
