Suppose the speed that they paddled was x mi/h
speed of current was 3 mi/h
speed of moving upstream
(x-3) mi/h
speed of moving downstream
(x+3) mi/h
one way distance=24/2=12 miles
time taken to move up stream:
12/(x-3) hr
time taken to move downstream
12/(x+3) hr
total time they paddled:
(8:30 a.m -4:00 p.m)-(1:30)
=7.5-1.5
=7 hours
thus
12/(x-3)+12/(x+3)=7
solving for x we get:
=24x/(x-3)(x+3)
24x/(x^2-9)=7
thus
x=5.1695~5.2 hours
x=5.2 mi/hr
thus
time taken to paddle downstream:
12/(5.2-3)
=5 5/11 hours
=5 3/11 hours
=5 hours 27 minutes
~5 hours 25 minutes
Answer:
True
Step-by-step explanation:
We have seen this take place numerous times throughout history. the value of a countries currency goes down and so does the hole economy. we can see this even happen in Germany after WWII and in multiple other places so yes the answer is true.
Answer:your answer is 25.41
Step-by-step explanation:
Surface area is 1/2 pl plus B so find the perimeter of the bottom, times it by 32, and find the area of the base
Answer:.....
Step-by-step explanation:sorry bro didnt want to troll you but needed points for my answer
