Emma started biking to the coffee shop traveling 15 mph, after some time the bike got a flat so Emma walked the rest of the way, traveling 7 mph. If the total trip to the coffee shop took 9 hours and it was 103 miles away, how long did Emma travel at each speed

Step-by-step explanation:

GIVEN: Emma started biking to the coffee shop traveling , after some time the bike got a flat so Emma walked the rest of the way, traveling If the total trip to the coffee shop took and it was away.

TO FIND: how long did Emma travel at each speed.

SOLUTION:

Let the distance traveled by Emma through bike is

Total time taken when traveled by bike

Distance traveled through feet

Total time taken when traveled by feet

Now,

Total time taken

Distance traveled through feet

Hence distance traveled using bike is and by feet is

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.