
Start by dividing both sides by 3. Then take the square root of both sides. Then subtract 3 from both sides and divide by 2.
Answer:
11 bottles
Step-by-step explanation:
make a proportion because if you're using the same rate proportions can show that it's equal

cross multiply


divide the answer by 90 to find x

round to 11 because you can't have 10.8 bottles
Answer:
Step-by-step explanation:
To find the probablility, add all of the possibilities. Then, divide the outcome by the total possibilities.
x+3x+5x+4x=13x
x/13x=1/13.
So, the probabilit is 1/13.