The answer is "-15.5".
- Designers can solve this question using proportions as well as a rule for two's based on the stated elevation.
[tex]\to -6.2 \ \text{meters is}\ \frac{2}{5} = 0.4[/tex]
- All way down the pipeline Down the line, [tex]100\% = 1[/tex].
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The rule of two is[tex]-6.2\ meters \to 0.4[/tex], and [tex]x \ meters\to 1[/tex]
- Applying Cross multiplication:
[tex]\to 0.4 x = -6.2 \\\\\to x = \frac{-6.2}{0.4}\\\\\to x = -15.5[/tex]
As a result, the elevation of the underground pipe end is -15.5 meters.
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