Answer:
\(-2\frac{6}{25}\)
Step-by-step explanation:
If the total weight change was \(-11 \frac{1}{5}lb\) in 5 months, then the average would be the quotient between these two quantities, that is
\(-11 \frac{1}{5}lb \div 5\)
However, we need to transform the mixed number into a fraction. We do that by multiplying -11 by 5 and summing the reminder of 1, so the expression would be
\(-\frac{56}{5}lb \div 5\)
Now,we divide
\(-\frac{56}{5}lb \times \frac{1}{5}=-\frac{56}{25}=-2\frac{6}{25}\)
Therefore, the average weight change is
\(-2\frac{6}{25}\)
