Question

3. Bozo the clown brings a total of 20 balloons to Jake’s birthday party. There are 7 yellow, 2 red, and 11 green balloons. He reaches into his pocket and randomly selects a color to make a balloon animal. If he pulls a yellow balloon first, what is the probability of the next color to be selected randomly will also be yellow?

Answer 1

at the first draw there are 7 yellow balloons out of 20, so the first probability is 7/20

take away one of the yellow balloons, and calculate the new # of yellow balloons / total # of balloons for the second draw

then multiply the two probabilities together

let me know if you're stuck or need additional clarification

Answer 2

do i multiply as a fraction

Answer 3

yes, you would multiply two fractions together

first fraction is 7/20, then after taking away a yellow balloon you get 6/19

so (7/20)*(6/19) = ?

Answer 4

it equals 21/190

Answer 5

well done, that's your solution

Answer 6

what would be the percentage

Answer 7

to convert from fractions to percentages you just need to plug numerator / denominator into a calculator then multiply by 100

so 21 divided by 190, then multiply by 100

wolframalpha.com is an online calculator if you need it.