Jane left the school and started to bike along the road at a rate of 12 mph. her friend sally left the school 10 minutes after jane, biking on the same road at a rate of 15 mph. how long will it take sally to catch up with jane?

10/3 hours

Step-by-step explanation:

12x=15x-10

12x-15x=15x-10-15x

-3x=-10

-3x/-3=-10/-3

x=10/3

Sally will catch up with Jane after 50 minutes.

Step-by-step explanation:

Since we have given that

Speed of Jane of biking = 12 mph

After 10 minutes,

Speed of Sally of biking = 15 mph

Let the distance be 'x'.

According to question, our required equation becomes,

Thus, total distance would be 10 miles.

So, the time taken by Sally to catch up with Jane is given by

Hence, Sally will catch up with Jane after 50 minutes.