The Amount of Tread Left on a Tire Varies Inversely $\frac { 5 } { 8 }$

Multiple Choice

The amount of tread left on a tire varies inversely as the number of miles the tire has traveled. A tire that has traveled 40,000 mi has $\frac { 5 } { 8 }$ in. of tread left. How much tread will be left on a tire that has traveled 19,000 mi ?

A) $\frac { 25 } { 19 } \text { in. }$
B) $\frac { 19 } { 25 } \text { in. }$
C) 64,000 in.
D) $\frac { 1 } { 64000 } \text { in. }$