Question

help

Answer 1

@satellite73

Answer 2

lol now we are doing probability?

Answer 3

mhm

Answer 4

there are 50 numbers written in blue, and another 9 between 1 and 9 in red, for a grand total of 59
out of the 100 the probability is \(\frac{59}{100}=0.59=59\%\)

Answer 5

Do i write all that?

Answer 6

for the second one, there are 50 written in red, plus 3 more that are multiples of 20, namely 60,80, and 100
for a total of 53
out of 100 the probability is \[\frac{53}{100}=0.53=53\%\]

Answer 7

you can write whatever you like
put it in your own words, but you do not need too many words because it is basically arithmetic

Answer 8

"multiples of 20" not "multiples to 21"

Answer 9

in the fraction bar next to the "penny" fill in 15/25 since there are 15 pennies and 25 coins total

Answer 10

m confused u do it

Answer 11

i just said what to do, there should be no confusion there
15/25

Answer 12

next to the pennies

Answer 13

guess what goes next to the nickles?

Answer 14

yay

Answer 15

whats next

Answer 16

guess what goes next to the nickles?

Answer 17

Don't mind this random comment: Grats on 90 rootbeer x'D

Answer 18

thanks, even tho i dont help anyone.. lol

Answer 19

@Ultrilliam why don't you go ahead and say what goes next to the nickles

Answer 20

lolllllll u act like an annoying teacher

Answer 21

Because I'm legit in the middle of taking a english test LOL

Answer 22

oh have fun

Answer 23

lets not always see the same hands...

Answer 24

@rootbeer003 how many nickles are there, i forget

Answer 25

@satellite73 idK

Answer 26

then you can't do this

Answer 27

:(

Answer 28

if you don't know the number of coins of each kind, this is impossible

Answer 29

1. A container holds 15 pennies, 8 nickels, and 10 dimes. You will randomly select two coins without replacement.
(a) Fill in the probabilities on each branch of the tree diagram.
(b) Use the tree diagram to answer the following:
How many ways can you select the coins?
How many way can you select exactly 1 nickel?
What is the probability that you select 2 pennies?
What is the probability that you select a dime and then a penny?

Answer 30

lol

Answer 31

8

Answer 32

doh

Answer 33

and how many coins total?

Answer 34

33

Answer 35

oh then a made a mistake
next to the pennies goes \[\frac{15}{33}\] next to the nickles goes \[\frac{8}{33}\]

Answer 36

seriously

Answer 37

yeah and guess what goes next to the dimes?

Answer 38

10/33

Answer 39

bingo

Answer 40

nice handwriting

Answer 41

now on the next part
one coin is already selected, so all the denominators will be 32

Answer 42

y r u making me write this dumb Cake

Answer 43

next the the pennies will be the following three \[\frac{14}{32}\\
\frac{8}{32}\\
\frac{10}{32}\]

Answer 44

i'll let you figure out what goes for the next three next to the nickel, i have to go see a man about a horse

Answer 45

r u serious

Answer 46

hello?

Answer 47

@satellite73

Answer 48

did you figure it out?

Answer 49

No

Answer 50

what do you have so far?

Answer 51

i legit sat here waiting 4 u

Answer 52

but i already told you what goes next to the pennies on the right layer

Answer 53

yes good
the reason the denominators are all 32 is because one coin is already picked
the reason the numerator for the pennies is 14 instead of 15 is because in that part of the tree, the first coin chosen was a penny, leavening 14 left

Answer 54

for the next one, next the the nickles will be \[\frac{15}{32}\\
\frac{7}{32}\\
\frac{10}{32}\]

Answer 55

7 for the nickles because in that part of the tree the first one chosen was a nickel

Answer 56

you can do the last three

Answer 57

i still dont get it

Answer 58

oh

Answer 59

im stupid

Answer 60

no, just not trying or reading or whatever you need to do
do you understand how the diagram works?

Answer 61

those numbers represent the probability you get a penny, nickel or dime respectively
it is the number of each divided by the total number of coins

Answer 62

the numbers represent the probability you pick a penny, nickel or dime given that the first pick was a penny

Answer 63

what do you have filled in so far?

Answer 64

ok last one \[\frac{15}{32}\\
\frac{8}{32}\\
\frac{9}{32}\]

Answer 65

oooh kay

Answer 66

How many ways can you select the coins?
ambiguous, but i think they want you to say 9, the number of boxes on the right

Answer 67

So 9?

Answer 68

yeah 9

Answer 69

Do i gotta put that?

Answer 70

How many way can you select exactly 1 nickel?
1) penny, nickel
2) nickel, penny
3) nickel, dime
4) dime, nickel

four ways

Answer 71

What is the probability that you select 2 pennies?\[\frac{15}{33}\times \frac{14}{32}\] whatever that is, reduced etc

Answer 72

What is the probability that you select a dime and then a penny? \[\frac{10}{33}\times \frac{15}{32}\] reduced etc

Answer 73

gotta run, ttyl

Answer 74

okay