Applications and equations

Algebra
Tutor: None Selected Time limit: 1 Day

The combined land area of the countries A & B is 153, 973 square kilometers. Determine land area of each country.

Sep 12th, 2015

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I just realized I should not have accepted this question, you did not provide all the information for the problem.
You need a piece of information about the countries A or about the countries B. What you need to do is we know that
the combined countries of A & B is 153,973...this is represented as

A+B=153,975 km


If you give me the rest of the details, I will give you the full solution. I am sorry for accepting, and please do not leave a bad review. Just give the rest of the details, and I will gladly help.

Please let me know if you need any clarification. I'm always happy to answer your questions. Leave a positive review if you are happy!
Sep 12th, 2015

Country A is larger by 773 sq kilometers

Sep 12th, 2015

We know that country A is larger by 773 sq kilometers

Therefore

A=B+773 sq kilometers

Substitute that into the original equation

A+B=153,975

(B+773)+B=153,975

2B+773=153975

2B=153,202

B=76,601

Substitute that A=B+773

A=76601+773=77,374


Let's check our answers

77,374+76601=153,975.

Therefore

Country A=77,374 sq km

Country B= 76,601 sq km


Sep 12th, 2015

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