SOLUTION: A supertanker leaves port traveling north at an average speed of 10 knots. Two hours later a cruise ship leaves the same port, heading south at an average speed of 18 knots. How ma
Algebra.Com
Question 937343: A supertanker leaves port traveling north at an average speed of 10 knots. Two hours later a cruise ship leaves the same port, heading south at an average speed of 18 knots. How many hours after the cruise ship sails will the two ships be 209 nautical miles apart? (1 knot = 1 nautical mile per hour)
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
distance tanker had already traveled when the cruise ship sails:
s = d/t
d = st
d = 10*2
d = 20 nm
---
relative speed of the two ships:
s = 10 + 18
s = 28 kts
---
time after cruise ship sails, when the two ships are 209 nm apart ...
the two ships are already 20 nm apart when cruise ship sails:
d = 209 - 20
d = 189
t = d/s
t = 189/28
t = 6.75 hr
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
RELATED QUESTIONS
A supertanker leaves port traveling north at an average speed of 10 knots. Two hours... (answered by mananth)
Ship A leaves port sailing north at a speed of 15 mph. A half hour later, ship B leaves... (answered by ankor@dixie-net.com)
Two ships leave port in different directions. The first ship leaves at 8AM traveling due... (answered by ankor@dixie-net.com)
A ship leaves a port at 12:00 Noon and sails East at speed of 10 miles/hour. Another ship (answered by ankor@dixie-net.com)
A cruise ship left the Dania Pier and traveled north. A container ship left two hours... (answered by josgarithmetic)
a ship leaves a port and sails for 4 hours on a course of 38° at 18 knots. Then the ship... (answered by stanbon)
A ship leaves a port and sails for 4 hours on a
course of 78° at 18 knots. Then the... (answered by ikleyn)
A ship leaves a port and sails for 4 hours on a course of 78° at 18 knots. Then the ship (answered by proyaop)
a fishing boat left dock 24 and traveled south at an average speed of 18 mph. A cruise... (answered by Maths68)