Question

Your a 7th grade math teacher and you want to create an experiment for your class with red, yellow and purple marbles in a bag. You want to theoretical probability of drawing a red marble to be 1/2, the theoretical probability of drawing a yellow to be 1/2, and the theoretical probability of drawing a purple to also be 1/6. If you want a total of 1260 marbles in the bag: How many red marbles are you going to put in bag?

Answer 1

well, since P(red)=1/2, you need

red/1260 = 1/2

Answer 2

14 units, x-5/2=y-7/3=z-3/6

Answer 3

ggi