Answer:
Step-by-step explanation:
your answer is B
Speed, S = Distance (d) / Time (t) => S= d/t => t= d/S
Let the speed of boat in still water be x mph
Resulting speed upstream = x-4 mph for a distance of 30 miles
Resulting speed downstream = x-4 mph for a distance of 50 miles
Time taken in both distances is equal.
Therefore,
30/(x-4) = 50/(x+4) => 30(x+4) = 50(x-4) => 30x+120 = 50x-200 => 120+200 = (50-30)x => 20x = 320 => x=320/20 = 16 mph
The speed of boat in still water is 16 mph.
Answer:
say it in English plZz
I can't understand Spanish or whatever ur saying sorry
Answer: 4 1/3 or 13/3
Step-by-step explanation:
Answer:
The Answer is: x / y = 8 / 3
Step-by-step explanation:
3(x - 2) - 4(2y - 1) + 2=0
3x - 6 - 8y + 4 + 2 = 0
3x - 8y = 0
3x = 8y
3x/y = 8
x / y = 8 / 3
Hope this Helps! Have an Awesome Day!! (-: