Which option best explains the sentence below in math terms?
The Earth is covered by 30 percent land and 70 percent water.
and the options are...
The 30% is the best
The sentence is describing the distribution of land and water on Earth. In math terms, it is stating that 30 percent of Earth's surface is covered by land and 70 percent is covered by water.
To better understand this, you can use the concept of percentages. A percentage represents a proportion or part of a whole. In this case, the whole is the Earth's surface, and we are looking at the proportion of land and water.
To find the answer, you can calculate 30 percent of the Earth's surface area to find the land coverage and 70 percent for the water coverage. This can be done by multiplying the total surface area by the respective percentage:
Land coverage = 30% of Earth's surface area;
Water coverage = 70% of Earth's surface area.
For example, if we assume the total surface area of Earth is 100 square units, then the land coverage would be 30% of 100, which is 30 square units, and the water coverage would be 70% of 100, which is 70 square units.
So, in math terms, the sentence can be explained as follows: "The Earth's surface area is divided such that 30 percent is land (30 square units) and 70 percent is water (70 square units)."