Answer:
The correct answer is 27' (minutes). The problem actually has only one solution.
Explanation:
- We have to part from the basic <em>speed-distance-time</em> formula:
s=d/t
- The time until they are distanced 10 miles is the same since the two trains leave at the same moment. We will call that time: t
- We will call the first train: A
- d1 is the distance train A traveled until it is distanced 10 miles from train B
70=d1/t
70t = d1
- We will call the second train: B
- d2 is the distance train B traveled until it is distanced 10 miles from train A
60=d2/t
60t = d2
- So, the distance between A and B when the trains leave is: 45 miles
d1 + d2 + 10 = 45
70t + 60t = 35
130t = 35
t=27’
The problem actually has only one solution.
A. Diverse economy; good luck
Adam Smith's theory of history work to the detriment of less economically advanced Non-European people in getting the people rich.
<u> Explanation:</u>
- Adam Smith creates GDP. Adam Smith wrote the book "The Wealth of Nation" and he was the Father of modern economics. He clearly explains the supply, demand.
- The wealth of the nation is the short name given for an inquiry into the nature and cause of the wealth of the nation.
- This wealth of the nation explains about wealth, productivity, labor, and markets.
- People of Non-European who have less economic condition is getting into the advanced economical state by understanding the theory of Adam Smith.
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