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).
4 is 80% of 5, because 1 is worth 20%
What's the question?
If it's "What's the difference?" or something like that, then the answer is 15. :)
Answer:
Step-by-step explanation:
Hope this helped!
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~AnonymousHelper1807</h2>
The answer is C. All you need to do is find the Y values that correspond with the X values. Have a great day
