Answer is B because brick starts with a B
It decreases by 0.5
The original mean was 5.5
The new mean is 5
Let the number of cards in each group be 2x and 3x.
So,
2x + 3x = 120
5x = 120
x = 120 / 5
x = 24
Number of cards in each group is
2x = 2 × 24 = 48
3x = 3 × 24 = 72
8 = 4w/3
8 = 4w/3
×3 = 4w×3
24= 4w ( the two 3s cross each other out)
÷4 = ÷4
8 = w ( the two 4s cross each other out)
The function can be factorised to (x+2)(x-1)^3 so the answer is true. x = 1 has a multiplicity of 3.
