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x = 0.436363636... . Prove algebraically that x can be written as 24/55.

Let x = 0.436363636...
10x = 4.36363636....1000x = 436.36363636...990x = 432x = 432/990 = 24/55

Answered by Hoonsoo J. Maths tutor
3867 Views

Alice will play 2 games of tennis against Bob. Alice’s chances of winning each game is 0.7. Work out the probability of Alice winning exactly one match.

The chances of Alice winning a game is 0.7, therefore the chances of Bob winning a game is 0.3. To work out the probability of Alice winning exactly one game, the probabilities of Alice winning once and B...

Answered by Charlie G. Maths tutor
2747 Views

Simplify fully the following equation: X^2-2x-15/2x^2-9x-5

We first need to simplify both the numerator and denominator of this fraction seperately. Let's start with the numerator: x^2 -2x -15We need to find two numbers that add to make -2 and multip...

Answered by Emilia P. Maths tutor
4414 Views

Solve 3x-8=19

3x - 8 = 193x = 19 + 83x = 27x = 27 / 3x = 9

Answered by Mishelle A. Maths tutor
3075 Views

A cylinder has a radius of 4 cm and volume of 800 cm3. A similar cylinder with the same height has a volume of 200 cm3. Find the radius of the smaller cylinder.

Firstly, we have to understand how the radius of the first cylinder was used to calculate its volume. Then we can use that understanding to then use the information we have about the other cylinder to cal...

Answered by Mika Erik M. Maths tutor
2351 Views

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