The speed of the boat still in water is 15km/hr it needs four more hour to travel 63km against the currnet of the river than it needs to travel dowen the river determine the speed of the currnet of the river

speed of currnet of river=3 km/hr

Step-by-step explanation:

speed of the boat in still water=15km/hr

speed of the boat in still water for four hour=

                                                                        =60km/hr

hence speed of currnet of river=63km/hr-60km/hr=3km/hr answer

the answer is 24

step-by-step explanation:

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.