book Maths Puzzle Numerical Ability

At 10am a car leaves a house at a rate of 60 mph. At the same time another car leaves the same house at a rate of 50mph in the opposite direction. At what time will the cars be 3

Read Solution (Total 0)

book Other Question

In his outboard, Kirk can travel 13.5 miles against the river current in 3 hours. In the same time, he can travel 22.5 miles with the current. What is the speed of the boat in stil For Each function (f), find (f)-1 and the domain and range of (f) and (f)-1 . determine whether (f)-1 is a function.

23. f(x)= 3x+4

** im really not sure of where to start on