The table below gives the dimensions of a bridge and a scale model of the bridge.
find the scale factor of the model to the real bridge.
write your answer as a fraction in simplest form.

find scale factor

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.