Related Maths GCSE answers
All answers ▸There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark or the boys.
Expand and simplify (x − 4)(2x + 3y)^2
Solve the simultaneous equations x + y = 3 and x^2 + y^2 = 5
How to calculate conditional probabilities? E.g, say we roll a fair standard six sided die, what is the probability we rolled a 2, given that the roll is even?