D, it increases then goes at a constant speed
Answer:
B=45
Step-by-step explanation:
Multiply 8 by 5
Add 40 and 5 together
Answer:
Step-by-step explanation:
Given: A tourist first walked 17km with a speed of v km/h.
Since
therefore,
Let be the time he walked with speed v.
then
Also he hiked 12 km uphill with the speed that was 2 km/hour less than his original speed.
Let be the time he hiked 12 km,
Then
The total time for the whole trip is given by:-
Substitute the values of and in the equation, we get
30 is the least common multiple