Two trains travel toward each other from points which are 195 miles apart.They travel at rate of 25 and 40 miles an hour respectively. If they start at thesame time, how soon will they meet?

Q: A kilometer is a bit more than .62 miles. If the speed limit along the stretch of a highway in…

A: Given that the speed limit along the stretch of a highway in Canada is 90 kph.

Q: A tall pipe is 30 feet tall. A person with a height of 6 feet walks away from the pipe along a…

A: The objective of this question is to find the rate at which the person is moving away from the pipe.…

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

A:

Q: An airplane travels at 165 km/h for 3 hr in a direction of 174 from a local airport. At the end of…

A:

Q: Two people are walking toward a statue. Alex is 200 m East and walking at a rate of 3 m/s. Charley…

A: The rate at which Alex walking is dxdt = -3 m/s when he is at 200 m East i.e., x=200 m The rate at…

Q: Mulder and scully are driving to the same town. Mulder leaves the office at 9:30 AM. Averaging 55…

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

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.