Antartica comprises about 10.5% of the total land area on earth. antartica has a surface area of about 5,400,000 square miles. what is the total land area on earth? write an equation and slove.
0.105x = 5,400,000
Solve for x.
x= 51428571.43 square miles
43532452
To find the total land area on Earth, we can set up a proportion using the given information:
Let "x" represent the total land area on Earth.
We know that Antarctica comprises about 10.5% of the total land area, so we can write the equation:
(10.5/100) * x = 5,400,000
To solve for "x," we need to isolate it on one side of the equation.
First, let's simplify the equation by dividing both sides by 100:
0.105 * x = 5,400,000
Next, divide both sides of the equation by 0.105:
x = 5,400,000 / 0.105
Now we can solve the equation to find the value of "x":
x ≈ 51,428,571.43 square miles
Therefore, the total land area on Earth is approximately 51,428,571.43 square miles.