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Sagot :
Let us use the following variables to represent the total rainfall for the years:
[tex]\begin{gathered} p=\text{ total rainfall in 2000} \\ q=\text{ total rainfall in 20}15 \\ r=\text{ total rainfall in 20}16 \end{gathered}[/tex]In 2015, the total rainfall in Central City was 13 inches less than the total annual rainfall in Central City in 2000. This can be expressed to be:
[tex]q=p-13[/tex]In 2016, the total rainfall in Central City was 33 inches greater than the total annual rainfall in Central City in 2000. This can be expressed to be:
[tex]r=p+33[/tex]The difference is given to be:
[tex]\begin{gathered} Total\text{ Rainfall in 2016}-Total\text{ Rainfall in 20}15 \\ \Rightarrow r-q \end{gathered}[/tex]Putting the values we've got, we can calculate the difference to be:
[tex]\begin{gathered} \Rightarrow(p+33)-(p-13) \\ =p+33-p+13 \\ =33+13 \\ =46 \end{gathered}[/tex]Therefore, the difference in the yearly rainfall from 2015 to 2016 is 46 inches.
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