Answer:
im confused
Step-by-step explanation:
Answer:
1/40
Step-by-step explanation:
3*40 + x / 4 = 45.
The answer of x comes out to be 60. Which means that the speed was travel around 60 miles per hour in the last one hour of the total journey.
Well to understand how i constructed its equation is very simple. I equated the total average speeds answer to 45 and just calculated the average speeds with the help of algebra where x is the number of miles..
Y=-x^10 Is the correct Answer. D.
Step-by-step explanation:
10 %, 7/10 and 0.2 are the three numbers that add up to 1
0.1 + 0.7 + 0.2 = 1
