SOLUTION: [ Driving through the mountains, Dale has to go up and over a high mountain pass. The road has a constant incline for 7.75 miles to the top of the pass. Dale notices from a road si

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Question 820694: [ Driving through the mountains, Dale has to go up and over a high mountain pass. The road has a constant incline for 7.75 miles to the top of the pass. Dale notices from a road sign that in the first mile he climbs 840 feet. How many feet does he climb in all? ]
Found 2 solutions by TimothyLamb, MathTherapy:
Answer by TimothyLamb(4379)   (Show Source): You can put this solution on YOUR website!
first mile:
y/x = 840/5280
---
to the pass:
Y/X = Y/(7.75 miles * 5280 ft/mile)
Y/X = Y/(40920)
---
y/x = Y/X
840/5280 = Y/(40920)
Y = (40920)840/5280
---
answer:
total climb = 6510 ft
---
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Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

[ Driving through the mountains, Dale has to go up and over a high mountain pass. The road has a constant incline for 7.75 miles to the top of the pass. Dale notices from a road sign that in the first mile he climbs 840 feet. How many feet does he climb in all? ] 


After traveling 1 mile, he climbs 840 feet

Using a proportion, and with amount of feet he climbs after going 7.75 miles being F, we get: 

F, or amount of feet he climbs = 

You can do the check!! 



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