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 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: Two Tropical Cyclones, travelling towards each other, left from two places that are 900 miles apart,…

A: Let the first Tropical cyclone be named cyclone A and the second one cyclone B.  Now, these two…

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 bank heist occurs. The robbers flee the bank at 60 km/h due south. As they are leaving, cops that…

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Q: Two people start walking from the same point. One walks south at 3 miles per hour and the other…

A:

Q: airplane flying to the Dominican Republic has an altitude of 31,000 feet and is ascending at a…

A:

Q: Two cyclists are travelling on a grid. At noon, cyclist A is 10 km west of cyclist B. Cyclist A is…

A: Given  At noon, cyclist A is 10 km west of cyclist B.  Cyclist A is travelling west at 10 km per…

Q: two ships leave port at the same time. one ship travels north at 37 mph and the other ship travels…

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Q: Two boats travel at right angles to each other after leaving a dock at the  same time. One hour…

A: Given: Two boats travel at right angles. one hour later they are 25miles apart. if one boat travels…

Q: It took a salmon 45 seconds to swim upstream to a certain spot. The salmon then turned around to…

A: To find speed of salmon

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.