Answer:
a) 0.25
b) 0.75
Step-by-step explanation:
The formula to find probability is
![\frac{Favorable \ outcomes}{total \ outcomes}](https://tex.z-dn.net/?f=%5Cfrac%7BFavorable%20%5C%20outcomes%7D%7Btotal%20%5C%20outcomes%7D)
Here as deck pf playing cards has 52 cards.
So total outcomes = 52
a)
A deck of cards has 13 hearts.
Favorable outcomes = 13
Probability of drawing a Heart
![=\frac{13}{52}= \frac{1}{4}=0.25](https://tex.z-dn.net/?f=%3D%5Cfrac%7B13%7D%7B52%7D%3D%20%5Cfrac%7B1%7D%7B4%7D%3D0.25)
b)
A deck of cards has 13 cards of clubs.
So the cards which are not clubs = 52-13=39
Hence favorable outcomes = 39
Probability of not drawing a club card
![=\frac{39}{52}= \frac{3}{4}=0.75](https://tex.z-dn.net/?f=%3D%5Cfrac%7B39%7D%7B52%7D%3D%20%5Cfrac%7B3%7D%7B4%7D%3D0.75)
Answer:
1:2
Step-by-step explanation:
She uses 1 cup of water and 2 cups of sugar so
1:2 or 1/2.
In total, there are 40 marbles. 25 of those marbles are green. What I did was divide the number of green marbles by fourth, the total number of marbles. (25/40) You should come up with 0.625. Then you convert the decimal into a fraction. 5/8 is equivalent to 0.625. Thus, 5/8 of the marbles are green.
Hope this helps :)
2/5=6/15
1/3=5/15
11/15
yes. that would be the last one possible.