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A 20-foot ladder is leaning against a vertical wall. The bottom of the ladder is pulled away horizontally from the wall at 3 feet per second. How fast is the top of the ladder sliding down the wall when the bottom of the ladder is 10 feet away?

This question can be divided into two different equations. In order to calculate how fast the ladder is sliding downwards, you need to know at what original vertical height the ladder is leaning on the wa...

Answered by Maximilian L. • Maths tutor

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Calculate the area of a circle where the circumference of the circle and sides of the square are tangential at 4 points.

Note this is:AQA GCSE Mathematics (8300) June 2017Paper 1: Non-Calculator 8300/1H - HigherQuestion 12The area of a square is its base multiplied by its height. In our case this gives an a...

Answered by Lewis S. • Maths tutor

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What is 3.25 plus 3 and 3/4?

Answered by Kelan T. • Maths tutor

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A plane flew from Frankfurt to Hong Kong. The flight time was 10hours 45minutes. The average speed was 852km/h. Work out the distance the plane flew.

Approaching this question, I firstly begin by reading the question carefully and determining what it is that needs to be calculated. The next stage is writing down any important information stated in the ...

Answered by Charlotte O. • Maths tutor

6866 Views

Solve the following simultaneous equations for x and y : 2x - y = 12; x + 3y = 20

When solving equations such as these we have two variables which represent two numbers. In order to solve them we want to isolate and remove one of the variables so we are only left with one, we do this b...

Answered by Alexander S. • Maths tutor

6431 Views