Question

I would love if anyone just anyone could give me the answer, explain, or just give me something close to the answer this is missing after like 4-5 days if I do it now I could still get some credit!!

Answer 1

the solution should be 54km/h if you use s=d/t

Answer 2

`54\:\mathrm{km/h}`

Explanation:

Average speed is given by
`S=(d)/(t)`, where
`d` is distance and
`t` is elapsed time.

Since we want the average speed of the entire trip, we need to total distance of the entire trip and the total time it takes for the entire trip.

What we know:

• The trip took 2 hours (2:30 PM to 4:30 PM)
• The bus travelled
  `22.5+42.8+42.7=108` kilometers

Substituting known values, we get:

`S_(avg)=\frac{108\:\mathrm{km}}{2\:\mathrm{h}}=\boxed{54\:\mathrm{km/h}}`