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6 and 4 are common factors of 24.

1/6 = 4/24, and 1/4=6/24.

4/24+6/24 =10/24 of the bag is blue and red counters. Therefore, 24/24-10/24=14/24 of the bag is white counters.

14/24 can ...

All the angles in a triangle add up to 180 degrees.

Therefore, 60 + (5y - 40) + (2y + 20) = 180.

This can be simplified to 7y +40 = 180.

And simplified again to 7y = 140, which then m...

For Type A: 10kg/1.25kg = 8 bags, therefore for 10kg it costs 8 x £1.50 = £12.00.

For Type B: 1 bag used to cost £6.60 but now has 15% off =>15% of £6.60 => £6.60 x 0.15 = £0.99 => So one ...

All quadratic equations can be written in the form ax² + bx + c = 0, where a, b and c are constants. Firstly, check whether you can easily factorise the equation into the form (x + p)(x + q) = ...

f(x) = 2x² - 12x +7

• First take out a factor of 2 so that we have the coefficient of x² as 1.        f(x) = 2[x² - 6x +7/2]

• Next, complet...