Maths-
SAT
Easy
Question
A geographer found that the land area of Aruba is 75 square miles and the land area of Bermuda is 19 square miles. Based on these data, the geographer used the equation 75x+19y = T to estimate the total number of residents, T, of the two islands. Which is the best interpretation of x in this context?
- The total number of residents of Aruba
- The number of square miles of Aruba
- The total number of residents of both islands
- The population density, in residents per square mile, of Aruba.
The correct answer is: The population density, in residents per square mile, of Aruba.
Population density = 
Here 75 square miles = Total area of aruba.
T= Total population of both aruba & Bermuda
75= Total population of Aruba.
= 
= Population density of Aruba.
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