Explain how land grants accelerated the development of the railroad system in the United States.
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Land grants made it possible to build a country wide system of rail fast.

Explanation:

At the time when the country wide railroad system in the US was established there had not been something that was so expansive and so ambitious that was ever done.

It was an architectural and logistical feat to achieve and the Americans had done it with swift disposition.

This was possible in part, due to generous land grant by the government to the people building it and there was never a halt in the construction that was not resolved fast.

This remittance of land made it one of the fastest constructions of its time.

lincoln won 212 electoral votes to mcclellan's 21 votes, and lincoln beat mcclellan. is the main reason lincoln won in 1864.

the correct answer is:   "   3.6 % " .

          →   the unemployment rate is:   " 3.6 % " .

explanation:

to calculate the "unemployment rate" :

the "unemployment rate"   =

  [# of people unemployed] /   [working age population]   * 100 %   ;

                =   [9 million] / [250 million]     *   100 % ;

    →     note:   the units of "million" cancel out;

                    since:   " {million} / {million} = 1 " ;

                =   (9 / 250)   * 100 %   ;

                = 0.036 * 100 % ;

                =   3.6 %

answer:   the unemployment rate is:   " 3.6 % " .