tori had 20 gumballs in a bag. there were 2 red gum balls, 3 blue gum balls, 5 yellow gum balls, and 10 purple gum balls. what was the ratio of blue gum balls to total number of gum balls?

3/20

thnx kuai:)

You're welcome.

also which are independent events?

a) a student spins a spinner. on the first spin she spins a six and on the second spin she spins a three
b) a student chooses a card from a deck of 20 cards. the student keeps the card and chooses another one.
c) a student tosses a coin three times. the results are heads,heads and tails
d) a student chooses a blue marble from a cup. the student returns it and chooses another marble.
i put a, b, and d is that correct?

c & d

To find the ratio of blue gum balls to the total number of gum balls, we need to divide the number of blue gum balls by the total number of gum balls. In this case, there are 3 blue gum balls and a total of 20 gum balls.

The ratio can be calculated as:
Blue gum balls / Total gum balls = 3 / 20

To simplify the ratio, we can divide both numbers by their greatest common divisor, which is 1 in this case. So the simplified ratio is:
3 / 20

Therefore, the ratio of blue gum balls to the total number of gum balls is 3:20.