3 years ago

Help me please!!!!!!!!!!

Mathematics

1 answer:

weqwewe [10]3 years ago

3 0

I don’t have enough info the question is cut off

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Answer:

1.8 mph

Step-by-step explanation:

Speed of the steamer in still water is 18 mph.

Speed of the current = x mph.

1. The steamer going downstream traveled the distance between two ports in 3 hours. Traveling downstream the current "helps" the steamer, then the speed is 18 + x mph.

The distance traveled downstream = 3(18 + x) miles.

2. The steamer going upstream traveled the distance between two ports in 3 hours 40 minutes that is $3\frac{2}{3}$ hours. Traveling upstream the current "interferes" the steamer, then the speed is 18 - x mph.

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$3(18+x)=3\dfrac{2}{3}(18-x)$

Solve this equation:

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