So 3/8 = 5% of original number
3/8 = 0.375
0.375 = 5% (x2)
0.75 = 10% (x10)
7.5 = 100%
Therefore original number = 7.5
The graph of the journey is shown in the speed-time graph below
At the time = 3 minutes, Peter would have achieved the speed V.
The distance he travelled is the area under the line as shown in the graph
We first need to find the V by using the area of a rectangle formula
so V=220
the gradient the f slope then given as
The length of the parallelogram is 18 meters.
The width of the parallelogram is 16 meters.