Answer:
Step-by-step explanation:
go to the back of the book
Answer:
sorry i didn't get it
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
The current probability of picking a red ball is
. When 5 more balls are added, the probability is 3/4. We can write a ratio for this problem:

When using cross multiplication to solve this, you get 3 * 20 = 4(x+5).
60 = 4x + 20
40 = 4x
x = 10 red balls
45.5 is your answer, you will have to multiple the height times the base ( 5 x 9.1 )