Answer:
53.33mph
Step-by-step explanation:
Let's calculated the total time spent on the journey first;
For the first 300miles the time spent is ;
From Distance = speed× time
time = Distance/ speed
= 300/60 = 5 hours
Similarly for the last 100mile the time taken is ;
100/40 = 2.5 hours
Total time spent = 5 +2.5 = 7.5 hours
Total distance covered 400miles
Therefore average speed = 400/7.5 =53.33mph
Answer:
3x -4y = 30
Step-by-step explanation:
Multiply the given equation by the least common denominator of the fractions, 6.
... (1/2x)·6 -(2/3y)·6 = 5·6
... 3x -4y = 30 . . . . . . simplify
Answer:
The length is 7.3m
Step-by-step explanation:
The end of the ladder touches the top of the tree when kept at 2.8m away from the tree.
The Tree is 4.5m tall
The length of the ladder will be: 2.8+4.5 = 7.3
If you convert 0.02 kilometers into centimeters, you would get 2,000 centimeters.
