To find the time it will take for a train
to travel from Springfield to Franklin,
d
where d
use the expression s,
represents distance and s represents
speed.
Find the time if the train travels
at a speed of 79
miles per
hour.
I don’t see how this is solvable The expression would be 79d, but how would you find the distance if it doesn’t tell you what to put for d. Are the options to pick from? So I could do 79d=____ to solve this