SOLUTION: driving through the mountains dale has to go up and over a high mountain pass the road has a constant incline for 7 3/4 miles to the top of the pass dale notices from a road sign t

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: driving through the mountains dale has to go up and over a high mountain pass the road has a constant incline for 7 3/4 miles to the top of the pass dale notices from a road sign t      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 879364: driving through the mountains dale has to go up and over a high mountain pass the road has a constant incline for 7 3/4 miles to the top of the pass dale notices from a road sign that in the first mile he climbs 840 feet how much feet does he climb in all
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
The 840 foot climb is part of a triangle with hypotenuse 1 mile. Try to do everything in feet, because the question asks for feet. A proportion will work.

1 mile = 5280 feet.

840%2F5280=y%2F%287%263%2F4%285280%29%29, ratios of the climb to the road distance.
The conversion factor is not really needed.

840%2F1=y%2F7%263%2F4, easier, because now this relates climb in feet to road distance in miles.
highlight%28y=840%287%263%2F4%29%29 feet.