Problema Solution
The combined land area of the countries A and B is 139973 square kilometers. Country A is larger by 873 square kilometers. Determine the land area of each country.
Answer provided by our tutors
Let
a = the area of country A
b = the area of country B
The combined land area of the countries A and B is 139973 square kilometers:
a + b = 139973
Country A is larger by 873 square kilometers:
a = 873 + b
We have the following system of equations:
a + b = 139973
a = 873 + b
........
........
a = 70,423 km^2
b = 69,550 km^2
The area of country A is 70,423 km^2.
The area of country B is 69,550 km^2.