Not completely sure how to answer your question but all 20 questions where worth 5 points each which she would have gotten a 100 if she got all right but she got 15 which her score would be 75. I think in a ratio of correct to incorrect would be 75:100 , I'm not sure completely.
greg spent $20 think
Step-by-step explanation:
i think you times
Answer:
no pic , what's the question
8 boxes is 100%, 6 out of 8 is 6/8 x 100% = 75%
You need to work backwards
if it is no more than 9 units away from 8
thus x must be 8-9<x<8+9 solving -1<x<17
so the answer is 4.
