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y=x2+x-6x= (-b+/- sqrt(b2-4ac))/2a<...
I used ratios in this context3kg : £54Using this ratio to work out the price of 2kg 2kg: £? To get from the number '3' to '2', I have to divide 3 by 3, then multiply it by 2So, using this same method (as ...
First work out 10% of 14000.You do this by dividing 14000 by 10 as this will than be a 10th of 14000 and therefore 10%14000 divided by 10 = 1400as the question asks for 20% you will need to add another 10...
Simply factorise both expressions and cancel out the common denominator until left with a fully simplified fraction.the top expression becomes (3x+1)(x-3) and the bottom becomes 2x(x-3). Therefore, (x-3) ...
Step 1: First it is best to rearrange the to simultaneous equations to have the unknown variables on one side and the constants on the other: 5x + 3y = 6 and 5x + 7y = 10.Step 2: Next is to notice that bo...
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