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A group of 120 Year 4s and Year 5s are going on a school trip. 60% of the children going on the trip are Year 4s, and of the Years 4s, 1/4 are boys. How many Year 4 girls are going on the trip?

There are quite a few stages to this problem, so let's work through each piece of information one by one. We know that the total number of children is 120, and 60% are Year 4s. Finding 60% straight away can ...
JK
Answered by James K. • Maths tutor
3668 Views

Solve simultaneous equations 3x+2y=9 5x-2y=7

Here we need to get rid of either the x or the y to find one solution to start us off. By adding these equations together we get: 3x+5x+2y-2y=9+7 The y's are eliminated to leave 8x=16. So x is 2! We can then...
JP
Answered by Jodie P. • Maths tutor
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Forty-seven thousand, nine hundred and eighty-three people went to a football match. What is this number rounded to the nearest thousand?

With this question the first thing to help you tackle it would be write the number as digits, i.e.Forty-seven thousand, nine hundred and eighty-three = 47,983Now, you want this number to the nearest thousand...
AE
Answered by Alicia E. • Maths tutor
9421 Views

How do I work out the area of a right angled triangle?

If we think about a right angled triangle, it is the same as one half of a square or rectangle. This is because if we join two right angled triangles at their diagonal sides, we make a square or rectangle. N...
CC
Answered by Ciaran C. • Maths tutor
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In a sports competition with 760 atheletes, the following pieces of information are true: 70% of the atheletes are runners, 40% of the men are not runners and 400 women are runners. How many women were there in total?

Firstly, we must identify the two things that we need to work out our answer. They are: How many male runners there are, and how many male non-runners there are, as once we have these, the remaining value wi...
CC
Answered by Ciaran C. • Maths tutor
4067 Views