A ship leaves a port going directly west at 45 mph. At the same time the first ship leaves port, a second ship, located 380 miles directly north of the port, is heading directly south at 35 mph. Find how the distance between the two ships is changing 4 hours after the first ship left port.

Q: A plane leaves the airport flying due west at 440 mph while another plane leaves the same airport at…

A: Given that the plane A moves west at a speed of 440 mph Plane B moves South at a speed of 392 mph…

Q: A cattle train left the station and traveled toward the fueling station at an average speed of 18…

A: The equation that describes the relationship between the distance, time and speed can be defined as:…

Q: A thermometer reading 10°C is brought into a room with a constant temperature of 32°C. If the…

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Q: A small radio transmitter broadcasts in a 50 mile radius. If you drive along a straight line from a…

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Q: A child who is 4 feet tall walks at a speed of 3 feet per second away from a lamp post that is 20…

A: Given that the child is 4 feet tall and he walks at speed of 3 feet per second from lamp post of 20…

Q: Question 82 > A bacteria culture initially contains 2500 bacteria and doubles every half hour. Find…

A: See the solution , you will understand easily.

Q: A tug boat can pull a barge 60 miles upstream in 15 hours. The same tug boat and barge can make the…

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Q: A missile flies 40 miles in 20 minutes. Calculate the missile’s rate of change

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Q: An Air Force plane left New York and flew south at the average of 252mp. A cargo plane left some…

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Q: A paddleboard can travel 80 feet downstream in the same time it takes to travel 40 feet upstream. If…

A: To find the speed of the current.

Q: Megan left the library traveling 15 mph. Then, 4 hours later, Lauren left traveling the same…

A: GIVEN: Megan left at speed = 15 mph               Lauren left after 4 hours at the speed = 27 mph…

Q: Two planes travel at opposite direction from same origin. One travels at 300 mph and the other at…

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Q: When a small airplane flies with the wind, it can travel 450 miles in 3 hours. When the same…

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Q: A train leaves Toronto at 2 p.m. A second train leaves Toronto at 5 p.m. and follows the first…

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.