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Levee Erosion
publish date: 2026/05/05 08:08:38.563164 UTC
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A levee's banks are eroding at a rate of 2 feet per year.
What signed number indicates how much of the levee will erode during the next decade?
Correct Answer
-20 ft
Explanation
Erosion of 2 ft per year is \(-2\) per year. A decade = 10 years:
\[ 10 \times (-2) = -20 \]
The levee will erode by 20 feet over the next decade (\(-20\) ft).
Reference
Mathematics for college students, go-math-science.com