The complete question is
<span>Sarah rides her horse for 2 1/6 hrs with a constant speed of 6 km/hr and then for another 2 hours and 5 minutes with a constant speed of 12 km/hr what is her average speed for the total trip?</span>
we know that
speed=distance/time
1) Sarah rides her horse for 2 1/6 hrs with a constant speed of 6 km/hr
time=2 1/6 hrs----> 13/6 hrs
speed=6 km/h
distance=speed*time----> 6*(13/6)---> 13 km
2)for another 2 hours and 5 minutes with a constant speed of 12 km/hr
time=2hrs+5 minutes----> 2+(5/60)--> 125/60 hrs
speed=12 km/hrs
distance=speed*time----> 12*(125/60)---> 25 km
3) find the average speed for the total trip
total distance=13 km+25 km----> 38 km
total time=(13/6)+(125/60)----> (10*13+125)/60----> 4.25 hours
speed=38/4.25----> 8.94 km/hrs
the answer is
8.94 km/hrs
Answer:
B.
Step-by-step explanation:
That is a parabola if you joined the points.
The type of equation is a quadratic.
Answer:(-5,4)
Step-by-step explanation:
D=rt
120= r(3)
120/3=3r/3
40=r
So what we do is we splie it up
remember that 1/1=1 so therefor 6/6=1
find out how many 6/6 are in 23 and how much is left over
remember that you can add the top numbers if the bottom numbers are the same
23/6-6/6=17/6 (that's one)
17/6-6/6=11/6 (that's 2)
11/6-6/6=5/6 (that's three)
therefor you have
23/6=6/6+6/6+6/6+5/6=1+1+1+5/6=3+5/6=3 and 5/6
therfor 3 goes in the blank in front of the 5/6
