The probability that the next 4 winners will all be 7th grade students is 3/4
Answer:
2 gallons of pure alcohol
Step-by-step explanation:
Let x represent the number of gallons of pure alcohol needed, and create an equation:
4(0.25) + x(1) = (x + 4)0.5
1 + x = 0.5x + 2
x = 0.5x + 1
0.5x = 1
x = 2
So, 2 gallons of pure alcohol should be added.
Answer:
times each other
Step-by-step explanation:
times by each other
It would be 1/7 chance cause there are 7 people total but you have the 1 chance that you are going to get your own name
