Un barco cuya velocidad es de 15 km / h en aguas tranquilas recorre 30 km río abajo y regresa en un total de 4 horas y 30 minutos. La velocidad de la corriente es de ___ km / h. Escriba su respuesta a continuación.

(2,9)

i think thats the answer i checked it on google

x=6 and x=3

beep beep imma sheep

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.

if you need , reply with more info. u.