The time it takes to drive between two cities varies inversely with speed. Leah can drive between Houston and Dallas in 3 hours driving at 70 miles an hour. About how long will it take her if she drives 60 miles per hour? It will take her hours.

Q: The stress on the material of a large circular metal pipe varies jointly with the internal pressure…

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Q: Two siblings are racing. The older sibling can run at a constant speed of 11 feet per second. The…

A: Given that out of two sibling the older sibling , the older sibling can  run at a constant speed of…

Q: Two cyclists leave a park and ride in opposite directions, one averaging 6 mph and the other 9 mph.…

A: Given, two cyclist rides in opposite directions, one average speed 6 mph and other average speed 9…

Q: An experienced accountant can balance the books twice as fast as a new accountant. Working together…

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Q: A pickup truck and Lamborghini enter a highway running east-west at the same exit heading in…

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Q: You can walk 8 miles in the same time that it takes to travel 16 miles by car. If the cars rate is 2…

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Q: as a result of adverse winds the average speed of a hydrofoil on the return leg of a 180 mile round…

A: Let x be the average speed of the hydrofoil on going out x-15 is the average speed of the hydrofoil…

Q: If Mary drove 330 miles in 6 hours at an average speed of 55 miles per hour, how many miles per hour…

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Q: A twin engine plane flies 660 mi in the same amount of time it takes a single engine plane to fly…

A: Consider, x be the rate(speed) of the single-engine plane. Given: we have the rate of the…

Q: Morgan and Sass were visiting a friend in Chicago. Morgan has to leave at noon, but Sass did not…

A: We will find out the total time Morgan drove.

Q: A car travels 23 mph slower in a bad rain storm than in sunny weather. The car travels the same…

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Q: Gabriel drives 40 miles at a certain speed. Hitting serious traffic, he is forced to drive at a…

A: Suppose Gabriel drives 40 miles at the speed of x mph. And his speed after hitting the traffic for…

Q: Sam left his house heading east and his brother left two hours later heading west at a rate 5 mph…

A: Let Sam's speed be x . First we formulate and equation in x by using the given data an then solve…

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.