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Rudiy27
3 years ago
12

A tugboat goes 180 miles upstream in 10 hours, the return trip downstream takes 5 hours. Find the speed of the tugboat without t

he current and the speed of the current
Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
6 0

Answer:

Upstream 18mph              Downstream  36 mph

Step-by-step explanation:

Upstream DATA:

distance = 180 miles ; time = 10 hrs ; rate = 180/10= 18 mph

-----

Downstream DATA:

distance = 180 miles ; time = 5 hrs ; rate = 180/5= 36 mph

------

Equation:

Upstream: b - c = 18 mph

Downstream: b + c = 36 mph

Now solve for "b"

solve for "c"

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Answer:

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Binomial probability distribution:

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

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