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 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 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: A small motor on a fishing boat can move the boat at a rate of 10 mph in calm water. Traveling with…

A: This is the question that is based on the concept of speed, distance and time. When the boat will…

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

A:

Q: Two cars start traveling from the same location. A blue car goes north at 30 mph and a red car goes…

A:

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

A:

Q: A boat can travel 8 miles downstream in the same amount of time it can travel 5 miles upstream. If…

A: If the speed of a boat in still water is u mph and the speed of the stream is v mph , Then  Speed of…

Q: Two trains left a station on at the same time. One traveled north at a certain speed and the other…

A: Let's find speed of both train.

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: homing device left its home to deliver a message. On​ takeoff, the device encountered a tailwind of…

A: Let the speed of the device in still air be x mph. Given the speed of the wind is 9 mph . The speed…

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: A train travels 96 miles in 3 hours.  At this rate, how long will it take to make a 480 mile trip?…

A: Given : A train travels 96 miles in 3 hours.

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.