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This is a super common question, and once you know which steps to take when, it is rather simple and just takes practise! First of all, these are the steps that you need to take: 1) Convert the mixed numb...

I spent some time working in a factory that made car parts recently and it is a good example of the different kinds of averages. This factory received about 100 orders a week. We could ship roughly 30 of ...

So what I would do first, would be to write the probability of chosing each counter out of the  bag. For example red is 3/6 => 1/2, green is 2/6 => 1/3, and blue is 1/6.

Then 5a => 1/6 is ...

look for common factors but there are not any in this case, it is a quadratic with 3 terms therefore it can be factorised into 2 brackets. First we look at the first term, since 7 is a prime number you ca...

2 + 3 + 7 = 12

6000/12 = 500

7 x 500 = 3500

(3/5) x (3500) = 2100

2100 + 2(500) = 2100 + 1000 = 3100

(3100/6000) x 100 = 52%.