Answer:
Step-by-step explanation:
The answer is 5
explanation:
Let's call our number
a
. The statement written as a formula is
a
12
a
9
=
125
We can simplify the fraction, and we have
a
3
=
125
To solve for
a
, take the third root of both sides:
a
=
(
125
)
1
3
=
5
Answer:
1/15
Step-by-step explanation:
When the bag is full (of 10 marbles), there are 3 pink marbles. Thus, the probability of drawing a pink marble is 3/10.
We don't replace that pink marble. So now we have 9 marbles instead of 10. We now have 2 pink marbles in the bag. The probability of drawing a pink one now is 2/9.
Thus, the probability of drawing 2 pink marbles in a row is (3/10)(2/9), or
6/90, or 1/15
