Answer: the answer is 6.375% because I just took the test
Step-by-step explanation:
Answer:
8.4 km/hr.
Step-by-step explanation:
We have been given that Julia rides her horse 18 km with a constant speed of 6 km/hr.
Let us find the time taken by Julia to cover a distance of 18 km.



We are also told that she rides another 24 km with a constant speed of 12 km/hr.
Let us find the time taken by Julia to cover a distance of 24 km.



Since we know that
.
Upon substituting our values in above formula we will get,



Therefore, Julia's average speed is 8.4 km per hour.
3x/4+3=20
<=> 0.75x +3 =20
<=> 0.75x = 17
<=> x = 68/3
Answer:
%27
Step-by-step explanation:
First, add the 0.7 over
0.3=0.5f-0.7
1=0.5f
Then divide by 0.5 on both sides
f=2