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So the best way to solve subject of the formula questions is to try and separate the term you want to make the subject, in our case S, from the rest of the terms in the e...

Let eq 1 = 4x + 2y = 26 eq 2 = 3x + 3y = 21 Using the elimination method: You need to make either the xs or ys have the same constant term in both equations( sign does no...

Bottom end of cylinder = 1.5²x pi = 7.07cm²Cylinder shaft surface area = 3 x pi x 15 = 141.4cm²Top end of cylinder exposed = 0 Base of pyramid exposed = (4 x 4) - 7.07 = 8...

"Mean" stands for "average", so if you add the mass of all the players together, then divide by the amount of players, you get 82kg. [ (number of players) x (mean mass) = (sum of mass)...