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Effectus [21]
2 years ago
13

A family buys 5 airline tickets online. The family buys travel insurance that costs ​$17 per ticket. The total cost is ​$930. Le

t x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.
Mathematics
1 answer:
Molodets [167]2 years ago
5 0

Answer:

169 = the cost of one ticket.

Step-by-step explanation:

17$ per ticket

5 people

total cost 930

17*5=85 // 930-85=845 // 845/5= 169

therefore each ticket costed 169 dollars with the addition of the insurance, they costed 186$

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Which expression is equivalent to x-3x-(-5x)?
Katena32 [7]

Answer:

D

Step-by-step explanation:

x-3x-(-5x)=-2x+5x=3x

4 0
3 years ago
Read 2 more answers
A sample with a mean of m = 40 and a variance of s2 = 20 has an estimated standard error of 1 point. how many scores are in the
tamaranim1 [39]

The correct option is 20.

The score found for the sample is 20.

<h3>What is Standard error?</h3>

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; \bar{x}=40

Sample variance; s^{2}=20

Thus, s=\sqrt{20}=4.47

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

S E=\frac{s}{\sqrt{n}}

We might rearrange the formula as follows:

\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}

Substituting the values;

\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

To know more about the Standard error, here

brainly.com/question/14467769

#SPJ4

3 0
1 year ago
Thoes are two separate questions number 10 and 11. Please help​
DerKrebs [107]

19374892837372737373

7 0
3 years ago
2x ≤ 12<br> Select the appropriate response<br> A2x ≤ 12 <br> B)x≤4 <br> C)x≤6<br> D)x ≤ 10
Monica [59]

Answer:

c x ≤ 6

Step-by-step explanation:

2x ≤ 12

Divide each side by 2

2x/2 ≤ 12/2

x ≤ 6

8 0
3 years ago
Six pumps working together empty a tank in 28 minutes. How long will it take to empty the tank if 4
Katarina [22]

Answer:

prob more time ngl

Step-by-step explanation:

6 0
3 years ago
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