Tim asked in Education & ReferenceTeaching · 9 years ago

I got this question on homework and can't seem to figure it out and my teacher never explained it.?

Two fishing boats depart a harbor at the same time, one traveling east, the other south. The eastbound boat travels at a speed 2 mi/h faster than the southbound boat. After seven hours the boats are x = 70 mi apart. Find the speed of the southbound boat.

2 Answers

  • Anonymous
    9 years ago
    Favorite Answer

    6 miles an hour

    Source(s): trigonometry
  • 9 years ago

    The boats are making a right triangle. The eastbound boat makes one side of it and the southbound makes the other side of it, while the distance between the two boats makes up the hypotenuse. So you use the equation a^2+b^2=c^2 to figure out the sides of the triangle. You know what the hypotenuse is and the differences in the sides, so you just plug in those values to figure out the rest.

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