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3 years ago

A radio station is giving away tickets to a play. They plan to give away tickets for

Mathematics

2 answers:

galben [10]3 years ago

6 0

Answer:

IDK

Step-by-step explanation:

kari74 [83]3 years ago

3 0

Answer:

You can give away 15 $10 Tickets and 5 $20 Tickets. So 15x+5y=20xy?

Step-by-step explanation:

You might be interested in

The Environmental Protection Agency (EPA) has contracted with your company for equipment to monitor water quality for several la

max2010maxim [7]

Answer:

36.58% probability that one of the devices fail

Step-by-step explanation:

For each device, there are only two possible outcomes. Either it fails, or it does not fail. The probability of a device failling is independent of other devices. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

A total of 15 devices will be used.

This means that $n = 15$

Assume that each device has a probability of 0.05 of failure during the course of the monitoring period.

This means that $p = 0.05$

What is the probability that one of the devices fail?

This is $P(X = 1)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{15,1}.(0.05)^{1}.(0.95)^{14} = 0.3658$

36.58% probability that one of the devices fail

7 0

3 years ago

Help please! any help is appreciated

maria [59]

Answer:

Step-by-step explanation:

P(even)=4/8=1/2

=50 %

P(8)=23/50

=46 %

5 0

3 years ago

Can someone please help me with 1-11? Brainliest answer will be awarded! :)

vovangra [49]

The most important thing that you have to know is that all angles in a triangle equals 180°

8 0

4 years ago

If a radioactive isotope has a half-life of 6 hours and 12 milligrams is initially present, how much will

Serhud [2]

Answer:0.75 milligrams will be present in 24 hours

Step-by-step explanation:

Step 1

The formula for radioactive decay can be written as

N(t)=No (1/2)^(t/t 1/2)

where

No= The amount of the radioactive substance at time=0=milligrams

t 1/2= the half-life= 6 hours

t=24 hours

N(t) = the amount at time t

Step 2--- Solving

N(t)=No (1/2)^(t/t 1/2)

=N(t)=12 x ( 1/2) ^ (24/6)

= 12 x (1/2) ^4

= 12 x 0.0625

= 0.75 milligrams

3 0

3 years ago

H + 2 = 17??<br><br>............?

Kazeer [188]

Answer:

H=15

Step-by-step explanation:

Do the problem backwards 17-2=?

17-2=15 so 15+2=17 so h=15

3 0

3 years ago

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