A cyclist rode From P to Q for 2 hours at an average speed of x km/h and then for 3/2 hours at (x-3)km/h
a) Find in terms of x an expression for the distance of PQ.
After he had rested for half an hour at Q,he rode back from Q to P for 3 hours at the speed of (x+1) km/h
b)Find in terms of x,an expression of the distance PQ
c)Form an equation in x and find the distance of PQ
d)Find the average speed for the two way journey

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distance = rate * time
a) PQ = 2*x+(3/2)(x-3)

b) PQ=3*(x+1)

c) we know the distance there = the distance back, so (2x+(3/2)(x-3)=(x+1)

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