in still water a boat travels 12 miles per hour if the speed of a current is 4.5 mph

[Sean]

If the current is coming towards you the equation is 12mph - 4.5mph= 7.5mph.
But if you are going with the current the equation is 12mph plus 4.5mph = 16.5mph

I hope this helps!

 

[Mia]

then how fast is the boat? How Fast Is The boat Going? Write an addition expression

 

[Llamalove]

12mph+4.5mph= 16.5mph.

 

[Joe]

If it's going with the current, 16.5 mph.
If it's going against the current, 7.5 mph.

 

[gary]

which way is the current going?