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5x+2y=13 + x-2y = 5 6x =18Firstly you need to either add or subtract one equation from the other. The way to decide this is to either focus on the x's or the y's. The trick to solving these simult...

First find total cost with VAT. £85001.2 = £10200
To find deposit:£10200 - (12£531.25) = £ 3825
To find ratio:3825 : (12*531.25)3825 : 63751 : (6375/3825)1 : 1.6^.

So because the wheel is split into equal segments. We can assume that if Harry has a single number then there is a 1/15 chance of Harry's number being chosen. To find the percentage you need to type 1 div...

a) Use FOIL to multiply out these bracketsF: x²O: -4xI: +3xL: -12 x²-4x+3x-12 = x²-x-12b) Find two common numbers that ADD UP to give +7, and MULTIPLY TOGETHER to give 12<...

a) Find two common numbers that ADD UP to give -5, and MULTIPLY TOGETHER to give (2*-12=) -24MULTIPLY TO -24 -1 and 24 1 and -24 -2 and 12 2 and -12 3 and -8 -3 and...