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3 years ago

8

a bottle contains red marble and blue marbles. a marble is chosen at random and not replaced. then a second marble is chosen at

random. determine the probability that at least one of the marbles is red

1 answer:

never [62]3 years ago

8 0

The question can't be answered without knowing how many red marbles and how many blue marbles are in the bottle.

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Help me plz show work

FinnZ [79.3K]

Answer:

c. 2,320miles

Step-by-step explanation:

29 divided by 1/4 = 116

116*20=2,320

7 0

3 years ago

at the zoo, there were 3 times as many monkey as lions. Tom counted a total of 24 monkey and linions. how many monkey were there

likoan [24]

To solve this problem you can first set up an equation.
3m+m=24
<u>4</u>m=<u>24
</u>4 4
m=6
6 monkeys
24-6=18 lions

7 0

3 years ago

How many ways can a dance instructor send 4 of her 11 students to a summer dance program?

Sedaia [141]

Answer:

d) 330

Step-by-step explanation:

The number of ways can a dance instructor send 4 of her 11 students to summer dance program is C(11 , 4)

That is $11_{C_{4} }$ ways

by using formula $n_{C_{r} } = \frac{n!}{(n-r)!r!}$

now simplification

$11_{C_{4} } = \frac{11!}{(11-4)!4!}$

= $\frac{11X10X9X8X7!}{(7!)4X3X2X1}$

after cancelling 7! and on simplification

= $\frac{11X10X9X8}{4X3X2X1}$

after cancellation we get 330 ways

The number of ways can a dance instructor send 4 of her 11 students to summer dance program is 330

8 0

3 years ago

The following table shows the number of police calls that were made last year in each of the cities in Hogden county

aalyn [17]

The number of calls is 283.2 but can be rounded to just 283 calls. Sorry if i'm wrong

4 0

3 years ago

A radio station is giving away T-shirts. the sizes are s, m, l, xl. the colors are red yellow and blue. how many different T-shi

sp2606 [1]

I think a four choices

7 0

3 years ago