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

Respuesta :

Answer:

Upstream 18mph              Downstream  36 mph

Step-by-step explanation:

Upstream DATA:

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

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Downstream DATA:

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

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Equation:

Upstream: b - c = 18 mph

Downstream: b + c = 36 mph

Now solve for "b"

solve for "c"

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