To find the water level of the river at the end of summer, we need to add the two negative elevations:
-
Initial Water Level:
meters below sea level- Converting this to an improper fraction:
- Converting this to an improper fraction:
-
Summer Drop:
meters below sea level- Converting this to an improper fraction:
- Converting this to an improper fraction:
Next, we need to add these two values together. Since both are below sea level, we will combine them, keeping in mind that they are both negative values.
We need a common denominator to perform the addition. The least common multiple of 2 and 3 is 6.
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Convert both fractions to have a denominator of 6:
- For
: - For
:
- For
-
Now, we can add the fractions:
This result,
- Converting
to a mixed number: Therefore,
Thus, the water level at the end of summer is