Answer:
3.08 km/h.
Step-by-step explanation:
We know that,
Ali traveled at a speed of s km/h for 2.5 hours.
Let d be the distance and t be the time.
...(1)
On his return journey, he increased his speed by 4 km/h and saved 15 minutes. So, distance is d and times is t-15.
...(2)
From (1) and (2), we get
Put t=40 in (1).
So, t=40 and d=100.
Now,
Total distance = d + d = 100 + 100 = 200
Total time = t + t - 15 = 40 + 40 - 15 = 65
So, the average speed is
Therefore, the average speed is 3.08 km/h.
Answer:
Left
Step-by-step explanation:
Answer:
Yes, they are equivalent.
Step-by-step explanation:
- To see if they're equivalent, you have to solve them. Start with the first one. Steps are below.
- Apply the distributed property: 8 + 12
- 8 + 12 = 20
For second expression:
- 4(2) = 4 × 2 = 8
- 4(3) = 4 × 3 = 12
- Put them together: 8 + 12
- 8 + 12 = 20
Making a conclusion:
Because they both have the same answer, they are equivalent expressions.
I hope this helps!
There are 7 tens, so i want to say 10^7
10 to the seventh power
Answer:
28/15 or 1 13/15
Step-by-step explanation:
