A book seller sells Mathematics and English books. If 30 customers buy Mathematics books, 20 customers buy English books and 10 customers buy the two books. How many customers has he altogether?
Make Q the subject of formula when \(L=\frac{4}{3}M\sqrt{PQ}\)
If 2x\(^2\) - kx - 12 is divisible by x-4, Find the value of k.
Factorize completely; (4x+3y)\(^2\) - (3x-2y)\(^2\)
If x - 3 is directly proportional to the square of y and x = 5 when y =2, find x when y = 6.
