Josh is designing a lab to separate a mixture of salt and water. he looks at all the ways to separate a mixture but decides that one way would work the best on this solution. what method should josh use?

evaporation

Explanation:

Evaporation is used in liquid and solid mixtures in which the liquid is evaporated. This method is effective when the liquid in the mixture easily evaporates, like water. Thus, we can conclude that evaporation would be the most efficient separation method for the student, shown in the question above, to use to separate the mixture of water and salt, because water would evaporate and salt would remain. This process is used in Brazilian salt flats to remove salt from seawater.

a skateboard rolling across the street - apex

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min