Respuesta :
d=rt
9=12r
9/12=r
10=15r
10/15=r
9/12>10/15
Therefore, Kim reaches the beach first.
9=12r
9/12=r
10=15r
10/15=r
9/12>10/15
Therefore, Kim reaches the beach first.
We can calculate miles per minute
9/12=3/4=0.75
10/15=2/3=0.67
Kim will get there first because 9 miles in 12 minutes is faster
9/12=3/4=0.75
10/15=2/3=0.67
Kim will get there first because 9 miles in 12 minutes is faster