Answer:
7
Step-by-step explanation:
Just notice that correct answers are whole numbers.
And, to win the game,Maria must have a score less than -80, it means she needs to score al least -85 ( it can not be -81, -82.. because 1 correct answer score -5, only multiples of -5 are accepted)
So, we take: 
= 7 correct answers to win the game.
Hope it will find you well.
Answer:
Theoretical probability is what we expect to happen, where experimental probability is what actually happens when we try it out. The probability is still calculated the same way, using the number of possible ways an outcome can occur divided by the total number of outcomes. As more trials are conducted, the experimental probability generally gets closer to the theoretical probability.
If there are 45 beads, with a ratio of
Then,
Then if
Then
Therefore,
Meaning, there would be a ratio of 36 beads to 9 beads
