How Many People On A 20 Boat The Speed Of Lazy Rivers Current Is 5mph. If Boat Travels 20 Miles Downstream In The Same Time That It Takes?

The speed of lazy rivers current is 5mph. If boat travels 20 miles downstream in the same time that it takes? - how many people on a 20 boat

This is not my duty math .. Is a test for my exam ... my style of singing in the night, described the teacher. I do not understand how they showed us the problem, I understand the problems and then .. to solve the reading and the equation .. I do not understand how he obtained this equation .. Please help .. Thank you!


The current speed is the Lazy River 5 mph when driving the boat travels 20 miles downstream at the same time 10 miles upriver to see the speed of the boat in calm water.

The P population varies directly with the population of N individuals. Kansas City has a population of 450,000 people and produces pullutants 260,000 metric tons. Find how many tons of pollution that we expect St. Louis occur if we know that its population is 980,000. Aroundnearest tonne.