If b = the rate a boat travels and c = the rate of the current, then which of the following expressions represents the rate of the boat traveling with the current?
b + c
b - c
bc

Question

If b = the rate a boat travels and c = the rate of the current, then which of the following expressions represents the rate of the boat traveling with the current?
b + c
b - c
bc

anonymous · Answer

B+c
Rate of boat travels is the speed of boat moves, rate of current is the speed of the current

Let us imagine that we're walking on road with speed 'b', your total moving speed is 'b'.
Then imagine ourselves that we're walking on an escalator. You walk with speed 'b' and the escalator is moving with speed 'c', so the total speed is 'b+c', this means you move even faster with the help of escalator.
I hope this helps.