we have the following:
We have that both cases, the value that they do not give us in the statement, but in the expression that models the equation corresponds to susie's speed and Sara's speed.
Susie's peed is 64 and Sara speed is 75.
6.25 the time in hours of Susie andd 2.25 the time in horus of Sara.
This is due to:
where, s is speed, t is time and d is distance