The diagram below shows the contents of a jar from which you select marbles at random.

a. what is the probability of selecting a red marble, replacing it, and then selecting a blue marble? show your work.
b. what is the probability of selecting a red marble, setting it aside, and then selecting a blue marble? show your work.
c. are the answers to parts (a) and (b) the same? why or why not?

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.