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a + 6b = 8 5th term: a + 18b = 44term 1: a + 6b = 8term 2: a + 18b = 44 term 2 - term 1: 12b = 36b = 36/12 = 3a + 6b = 8a + 6(3) = 8a = 8-18 = -10
We can calculate the sum of the numbers in the ratio. 1+2+5=8.Now divide £7200 by 8 to find out how much 1/8 is worth (7200/8=90)Finally multiply 90 by 5 to calculate 5/8 (the amount that Harry will recei...
Firstly, we have to substitute g(x) into the function f(x)So, fg(x) = (g(x))^2 +2Next we must rewrite the equation on the RHS in terms of x onlySo, fg(x) = (x-5)^2 +2 Next we must simpli...
Good question! This is exactly the kind of question that could come up on the GCSE non-calculator paper. I think the main thing that makes this question tricky is sifting out the information and figuring ...
Firstly, let's have a look through the question to find the key words and write down any equations you might need. Perpendicular means the two lines cross and meet at a right angle, we also have an equati...
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