Route X

$1.$ Start from Voyager

$2.$ From Voyager travel to Planet $20$

$3.$ From Planet $20$ travel to Planet $2$

$4.$ From Planet $2$ travel to Planet $13$

$5.$ From Planet $13$ travel to Planet $11$

$6.$ From Planet $11$ travel to Planet $3$

$7.$ From Planet $3$ travel to Earth $($Home$,$ Sweet Home!$)$

Network Diagram $2$ shows the possible routes through the Delta Quadrant, where the nodes are different worlds, planetary system and space anomalies, and the values on the branches are the actual distances, in light$-$years, between nodes. Network Diagram $2$

$-$ Assume that all branches are undirected, with travel distance indicated for each branch. For example, distance from Voyager to Planet $2$ is $16\mathrm{.}32$ light years; and distance from Planet $2$ to Voyager is $16\mathrm{.}32$ light years.

$-$ If you are having trouble seeing the network or reading the numbers clearly, do not worry. An image version of the network diagram is available on Brightspace. Please refer to the Exam IV Module, Images submodule. This is Network Diagram $2.$

What is the length of Route X $?$

Using Network Diagram $2,$ the length of Route $\backslash ($ X $\backslash )$ is light$-$years.

Round your answer to one decimal place. For example, if you have the number $7\mathrm{.}86,$ rounding to one decimal place would give $7\mathrm{.}9.$ Alternatively, if you have the number $4\mathrm{.}32,$ rounding to one decimal place would give $4\mathrm{.}3.$