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the speed of boat in still water u = 19 mile/hour let the speed of the current = v mile/hour so speed of boat in up stream = u - v miles/ hour .......................................= 19 - v mile/ hour speed of boat in down stream = u+v mile/hour ...........................................= u - v mile/hour let the time taken be ' t...

subtract the current speed (x) from 19 mph on the "upstream" side of the equation, and add it to the "downstream" so it'll look something like this. 15miles/(19-x)=23miles(19+x) just solve for x (I got 4mph, but you should double check that)

Dx = horizontal distance traveled = 17.0 meters Vx = horizontal speed = 39.1 m/sec = 87.46 mi/h    Time of Flight = t = (Dx) ⁄ (Vx) = (17.0) ⁄ (39.1) = 0.43478 sec    h = height relative to initial height  Vyi = initial vertical speed = 0...

Please forgive me for not using the pound sign - although I am British, my keyboard is Thai and does not have a pound sign on it - so I shall use the $ sign instead. Let the original price of the first shop be $A, and...

... declension) http://en.wiktionary.org/wiki/eques#Inflection spes : spei (fifth declension) http://en.wiktionary.org/wiki/ spes #Inflection...

...quot;since" or "because". "rediit": i.e. "redivit". " spe omni": ablative of reference, i.e. "with respect to all hope". "...

noctis (gen) lucis (gen) spes (nom noun) spero (to hope, verb) bellum (gen) terminus (nom noun) This...

... Vatican Council is responsible for Gaudium et Spes . So long as you make sure to give them the credit, you'll be fine...