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To explain this question to a student, I would initially ask my own questions in order to gain an understanding of what the student already knows about simultaneous equations. I would ask if they had seen...

7.4²-2.9²=answer²

square root above answer to get the answer

You can use pythagoras' theorem to find the length of a side of a right angled triangle, provided that at least two of the lengths of the sides are known. The general rule is a² + b²...

Write down all the information they have given you so There is 50 people 21 male so therefore 50 -21 = 29 females It says 6 out of 8 people who had apples were female so that means 8 people had apples App...

Let x = 0.2(54) = 0.2545454...

Then 100x = 25.454545... = 25.4(54)

So 99x = 100x - x = 25.4(54) - 0.2(54) = 25.2

Hence 990x =252

Therefore x = 252/990 = 14/55