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slavikrds [6]
4 years ago
15

Please I need help really bad

Mathematics
1 answer:
Allisa [31]4 years ago
8 0

Answer:

$80

Step-by-step explanation:

2 adults at $20 each

4 children at $10 each

20(2)+10(4)=80

40+40=80

80=80

why multiple 2 by 20?

because there are 2 adults and it costs $20 per adult

why multiple 4 by 10?

because there are 4 children and it costs $10 per child

why add them together?

because they want admission for 2 adults and 4 children so adding them together will give the total price

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Rectangle Q has an area of two square units. Thea drew a scaled version of rectangle Q and labeled it rectangle R. what scale fa
belka [17]

Answer:

It is given that Rectangle Q has an area of 2 square units.

Thea Drew a scaled version of Rectangle Q and marked it as R.

As you must keep in mind If we draw scaled copy of pre-image, then the two images i.e Pre-image and Image are similar.

As you have not written what is the scale factor of transformation

Suppose , Let the Scale factor of transformation= k

Rectangle Q = Pre -image, Rectangle R= Image

If, Pre-Image < Image , then scale factor is k >1.

But If, Pre-Image > Image , then Scale factor will be i.e lies between, 0<k<1.



3 0
3 years ago
Read 2 more answers
Students arrive randomly at the help desk of the computer lab. There is only one service​ agent, and the time required for inqui
Temka [501]

Answer:

It takes on average 3 minutes to service each​ student.

Step-by-step explanation:

In queueing problem, an M/M/1 queue model is an arrangement with a single queue, where arrivals at the queue are approximated by a Poisson distribution with mean λ and the service times follows an exponential distribution with mean μ.  

The mean number of arrivals in this system is given by:  

\text{Avearge}=\frac{\rho}{1-\rho}  

Here the variable ρ is defined as:

 \rho=\frac{\lambda}{\mu}

From the average number of arrivals in the system, we can calculate the average number of arrivals in the queue by subtracting the average number of arrivals in service.

That is,

\text{Average arrivals in queue}=\frac{\rho}{1-\rho}-\rho=\frac{\rho^{2}}{1-\rho}  

The information provided is:

The average number of arrivals of customers is, λ = 12 students/hour.

The average service rate of a single server is, μ = 20 students/hour.

The average of an exponential distribution is:

E(X)=\frac{1}{\mu}

Compute the average time it takes to service one student as follows:

E(X)=\frac{1}{\mu}

         =\frac{1}{20}\\\\=0.05\ \text{hour}\\\\=3\ \text{minutes}

Thus, it takes on average 3 minutes to service each​ student.

4 0
4 years ago
Ana is planning to plant roses around the edge of a circular flowerbed having a diameter of 7 feet. If the total cost of plantin
Lemur [1.5K]
Pi is equal to the amount of times the diameter fits around a circle, in this case, 7xPi is equal to your total cost. 7Pi=176, to find the cost per foot divid 176 by 7 foot, this gives you the amount. I hope you found this helpful.
4 0
4 years ago
Kim bought four shirts and three pair of jeans for $109.85. Jim bought six shirts and one pair of jeans for $94.95. Each shirt c
Andrew [12]

Answer:

Jeans-$19.95

Step-by-step explanation:

The expression for each individual's purchase can be expressed as:

Jim=> 6s+j=94.95\ \ \ \ \  ...i\\\\Kim=>4s+3j=109.85\ \ \  \ \ ...ii

We make j the subject in equation i then substitute in ii:

j=94.95-6s\\\\\#substitute \ in \ two\\\\4s+3j=109.85\\\\4s+3(94.95-6s)=109.85\\\\4s-18s+284.85=109.85\\\\14s=175\\\\s=12.5\\\\j=94.95-6\times 12.5=19.95

Hence, it costs $19.95 per pair of jeans and $12.50 per shirt pair.

6 0
4 years ago
HELP ME PLZZZZZZZZZZ I WILL GIVE MORE POINTS AT THE END
Tatiana [17]

Answer: the answer is u \geq 2

3 0
3 years ago
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