Answer:
D
Explanation:
When all of the above is an option choose it
The Panama Canal created a major economic boost for the united states because it allowed for a much shorter shipping route to Asia/Europe, and of course was a military/security advantage because it allowed for faster troop movements.
The correct answer is better C.
Explanation: Frederick Jackson Turner was an American historian, known primarily for his work in the area of US history.
If the southern trek took 48 hours and the norther trek took 53 hours, the northern trek was 285 miles longer than the southern trek , how long was each trek.
If we assume the distance of the southern route was d , then the northern route will be d+285.
Speed is given by distance/ time
Hence, speed through the southern route will be d/48 and through the northern route will be (d+285)/53.
But in both routes the speed was the same.
Therefore, d/48= (d+285)/53. Solving for d
53 d= 48 (d +285)
53d = 48d +13680
5d=13680
d= 2736 and (d+285= 3021)
There, the southern route is 2736 miles long and the northern route is 3021 miles long
