Mathematics

Question

the combined land area of the countries a and b is 186,973 square kilometers. Country a is larger by 373 square kilometers determine the land area of each country

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1 Answer

  • so a+b=186973

    a is bigger than b by 373
    that means
    b+373=a
    so we subsitute
    a+b=186973
    b+373+b=186973
    subtract 373 from both sides
    b+b=186600
    2b=186600
    divide both sides by 2
    b=93300

    subsitute
    b+373=a
    93300+373=a
    93673=a
     
    a=93673 km^2
    b=93300 km^2