Maths-
SAT
Easy
Question
Water quality managers estimate that a population of algae initially covered x square miles of water in a nearby river. After a period of time, the algae grew to cover 375% of its original area. Which of the following expressions represents the area of water, in square miles, that the algae covered after this period of time?
- 0.375x
- 3.75x
- 37.5x
- 375x
The correct answer is: 3.75x
The original area of algae covered is x square miles.
The increment of the area of algae is 375 % of original area
= 375 % of x
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