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2x + 4 = 4y ; 3y + 3 = 3x. What is x and y respectively?

Firstly you need to identify the information in the question that is key. On analysing the question, you will see that the objective is to find what x is and what y is respectively. We are given two separ...

Answered by Shriram R. • Maths tutor

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Find the solutions to the following equation x^2 - 5*x + 6 = 0

There are several ways one can go about answering this question, one of which is to 'complete the square' by trial and error. A different, potentially easier method is to substitute the coefficients into ...

Answered by Frederick M. • Maths tutor

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Probabilities: "A bag contains counters that are red, blue, green and yellow. There are 9 red, (3x) blue, (x-5) green and (2x) yellow. If the probability of picking a red at random is 9/100, work out the probability of picking a green."

If there is a total of 100 counters, 9 + (3x) + (x-5) + (2x) = 100.

3x + x + 2x = 100 + 5 - 9

6x = 96

x = 16

Probability of picking green = (16 - 5)/100 = 11/100

Answered by Charukshi D. • Maths tutor

11035 Views

Expand completely: (3a-6)(a+3)

Final Answer: a² +3a -18 Using FOIL (First, outside, inside, last) we multiply the terms in the brackets together. First: 3a multiplied by a = 3a² Outside: 3a x 3 = 9a Inside: -6 x ...

Answered by Sam S. • Maths tutor

3398 Views