Why did populists want the united states to move from a currency backed by
gold to one backed by both gold and silver?

In 1893, the country was in thrown into a depression that lasted until roughly 1900 from the bursting of the railroad speculation bubble. Populists, who were primarily farmers, wanted to reinstate the system of bimetallism that had traditionally been in place in an effort to inflate the currency to provide them with more cash that could then be used to pay off their debts with cheaper dollars.So, It would increase the supply of money.

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it would increase the supply of money-Apex

Explanation:

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.