Answer:
2/10 (1/5)
Step-by-step explanation:
to do this, you know that the marble is put back, so you have an equal chance each time. then, find how many black marbles there are, and go from there.
No wonder !
Please proof-read your question, make sure it says
what you want to say, and post it again.
Right now, we are all as confussed as you are.
To find how many cupcakes Ling must sell to break even, you will create an equation where the functions are equal.
0.25x + 30 = 1x; then solve the equation for x, the number of cupcakes.
0.25x + 30 = 1x
-0.25x -0.25x
<u>30</u> = <u>0.75x</u>
30 30
x = 40
Ling will need to sell 40 cupcakes.
Answer: 
Step-by-step explanation:
Given : The number of cherry lollipop = 5
The total number of lollipop = 8
the number of lollipops other than grape =6
The probability of selecting a cherry lollipop is given by :_

The probability of selecting a lollipop other than grape is given by :_

Since, there is replacement , then the events are independent of each other.
Now, the probability that Julie will select a cherry lollipop and then a lollipop other than grape is given by :-

Hence, the required probability =