A bad contains 15 balls of which X is red. Write an expression for the probability that a ball drawn from the bad is red. When 5
more red balls are added to the bag, the probability becomes 3/4. Find the value of X.
1 answer:
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
You might be interested in
Answer:
Step-by-step explanation:
38.

37.

No 20.0000004 cannot be rational.
Answer:
2.2
Step-by-step explanation:
4.4 + -2.2 = 2.2
....................................................................
Answer:
10.5
Step-by-step explanation:
1.5 inches
.5 and 1.5 =3
3x3.5=10.5
Answer:
0.5
please mark me as Branliest