Answer:
20 minutes per pound
Step-by-step explanation:
we know that
To find the unit rate divide the total time by the total weight
Convert mixed number to an improper fraction
[tex]16\frac{1}{5}\ lb=\frac{16*5+1}{5}=\frac{81}{5}\ lb[/tex]
[tex]5\frac{2}{5}\ lb=\frac{5*5+2}{5}=\frac{27}{5}\ h[/tex]
Convert hours to minutes
[tex]1\ h=60\ min[/tex]
so
[tex]\frac{27}{5}\ h=\frac{27}{5}(60)=324\ min[/tex]
Find the unit rate
[tex]\frac{324}{\frac{81}{5}}=\frac{1,620}{81}=20\ \frac{min}{lb}[/tex]
therefore
20 minutes per pound
