Question in description!

Question

Kori started biking to the bookstore traveling 13 mph, after some time the bike got a flat so Kori walked the rest of the way, traveling 7 mph. If the total trip to the bookstore took 5 hours and it was 47 miles away, how long did Kori travel at each speed?

Answer 1

Let time traveled by bike, denoted by t1, be X

and time traveled on foot, denoted by t2, be (5-X)

 

Distance = Speed * Time

Distance = s1*t1 + s2*t2

 

Distance= 47

s1= 13

s2=7

 

47=13*X + 7*(5-X)

47=13X + 35 - 7X

12=6X

X=2

 

Therefore, she biked for 2 hours and walked for 3 hours.

 

 

Answer 2

Shelly,

 

I think you may not have posted all the information for your problem, or at least I can't figure out how to solve this problem. If you post the rest of it, I'll see if I can give you some help.

 

Bryce