Suppose you have a box with 3 blue marbles, 2 red marbles, and 4 yellow marbles. you are going to pull out one marble, record its color, put it back in the box and draw another marble. what is the probability of pulling out a red marble followed by a blue marble? be sure to reduce your answers. a. 6/81 = 2/27
b. 6/18 = 1/3
c. 5/9
d. 5/18

red = 2/9

blue = 3/9 = 1/3

 multiply together

2/9 x 1/3 = 2/27 so answer is a

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere