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never [62]
3 years ago
14

Sam took his family to the zoo. An adult's ticket is two times the cost of a child's ticket. The total cost for two adults' tick

ets and three children's tickets was $28. How much do the tickets cost? A. Child's ticket = $5.60, adult's ticket = $11.20 B. Child's ticket = $2, adult's ticket = $4 C. Child's ticket = $4, adult's ticket = $8 D. Child's ticket = $7, adult's ticket = $14 \
Mathematics
2 answers:
givi [52]3 years ago
8 0
Is c the reason is 4x3=12 8x2=16 12+16=28
aleksklad [387]3 years ago
4 0
2a + 3c = 28
a = 2c

2(2c) + 3c = 28
4c + 3c = 28
7c = 28
c = 28/7
c = 4 <== childs ticket

a = 2c
a = 2(4)
a = 8 <== adults ticket
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Smoothing a time series of observations A. is a form of statistical cheating. B. allows statisticians to use less data than woul
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Answer:

D. is used to reveal an underlying pattern in the data.

Step-by-step explanation:

Smoothing a time series is achieved when a computer uses some pre-programmed calculation methods to remove noise from large volumes of data. Smoothing helps a user detect patterns in a set of data, thus making it possible to make future predictions. For example, smoothing can be used in the prediction of the rise and fall of stock prices. This helps the traders to have an idea of what to expect in the cost of trading.

Although smoothing reveals the patterns in a set of data, it provides no explanation as to why it is so. It is left to the researcher to draw conclusions as to the reasons for the patterns.

5 0
3 years ago
Please help math i will give good rating and 5 stars if answer question
Talja [164]

Hey!

Let's walk through this together.

Possible Answers: {5, 7, 9, 11, 13}

Let's start with 5.

5-4<8

1<8

So, 5 is CORRECT.

Next, 7.

7-4<8

3<8

So, 7 is CORRECT.

Next, 9.

9-4<8

5<8

So, 9 is CORRECT.

Next, 11.

11-4<8

7<8

So, 11 is CORRECT.

Last, 13.

13-4<8

11<8

So, 13 is INCORRECT.

Your answers are: {5,7,9,11}

So D.

Hope this helps!

<h2><em>~~~PicklePoppers~~~</em></h2>
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2 years ago
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Answer:

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Step-by-step explanation:

7 0
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Step-by-step explanation:

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sergij07 [2.7K]

Answer:

-15

Step-by-step explanation:

x2 – 2(x - y) – 23

if x = -3, y = 4  and z = -1

-----------------------------------------------

-3 x 2- (-3 - 4) - 23

-15

7 0
3 years ago
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