Given,
Time taken by motorboat to going 200 miles upstream is 5 hours.
Time taken by motorboat to going 200 miles downstream is 4 hours.
At upstream,
The speed of boat is offosed by the speed of current.
At downstream,
The speed of boat is incraesed by the speed of current.
Consider,
The speed of boat is b.
The speed of current is c.
The speed is calculated as,
Similarly,
Substituting the value of b from equation (2) then,
Substituting the value of c in equation (1) then,
Hence, the speed of boat is 45 mile per hour and speed of current is 5 mile per hour.
Answer:
áedw
Step-by-step explanation:
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Answer:
So
Step-by-step explanation:
So the first thing you do is take 2x to the other side. so it becomes a-b-2x=-3y. then take -3 out of y so it becomes y=a-b-2x/-3..Tadadaaa
Answer:
20
Step-by-step explanation:
15 + 5= 20
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➷ Just trial and error it:
72 x 1.04^5 = 87
(it needs to be much higher than this)
72 x 1.04^40 = 345
(again, it needs to be higher)
72 x 1.04^48 = 473
As you can see, it would take 48 months.
There are 12 months in a year
48/12 = 4
It would take 4 years.
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➶ Hope This Helps You!
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