Answer:
20% (pls mark me brainliest)
Step-by-step explanation:
1. you have to figure out what percentage each marble is by dividing 100 by the total amount of marbles 100 ÷ 16 = 6.25%
2. you then take that sum and you multiply it times seven because there are seven purple marbles, 6.25 x 7 = 43.75% which is the probability that you'll pick a purple marble.
3. you would then have 15 marbles so you would have to do step 1. again but with 15 substituted instead of 16, 100 ÷ 15 = 6.67%
4. after that you would do step 2. again, this time taking 6.67 and multiplying it by seven because of the seven orange marbles: 6.67 x 7 = 46.69%
5. since for this to work you would need to choose the purple one in the first place you need to figure out what 46.69% is out of 43.75%: 20.426875% which rounds down to 20%
