Lisa B.

asked • 02/16/13# two boats leave the harbor at 9:00 am. Boat A sails north at 20 km/hr. Boat B sails west at 15km/hr. 158, How far apart are the two boats at noon?

two boats leave the harbor at 9:00 am. Boat A sails north at 20 km/hr. Boat B sails west at 15km/hr. 158, How far apart are the two boats at noon? helpppp

## 2 Answers By Expert Tutors

Kate K. answered • 02/26/13

Let's Work Together: You Can Succeed With the Right Tools and Tutor

North bound : 20km x 3 hours = 60 KM. west bound 15km x 3 hours = 45 km. Now 60^2 + 45^2 = 3,600+ 2025 = 5625. Square root of 5,625 =75. they are 75 km apart. (using the Pythagorean theorem)

John R. answered • 02/16/13

Physics and Math Tutor – Kind, Easy-going, Patient

Be sure to apply the Pythagorean formula: the length of the hippopotamus (hypotenuse) squared is equal to the sum of the squares of the lengths of the legs.

c= √(a^{2} + b^{2})

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Lisa B.

is it 105km?

02/16/13