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aliya0001 [1]
2 years ago
10

how to write a system of linear equation that represents the situation you sell 14 more tickets than your friend sells together

you and your friends sell 58 tickets
Mathematics
1 answer:
Dimas [21]2 years ago
6 0

We will call the number of tickets you sell x and the number your friend sells y. Given this, we can create the first equation, which is:

x = y + 14

  • This shows that the number of tickets you sold is equal to the number your friend sold + 14, which symbolizes that you sold 14 more tickets than your friend

We can also create the second equation:

x + y = 58

  • This shows that the number of tickets you sold along with the number of tickets your friend sold is equal to 58 tickets in total

Thus, our system would be:

x = y + 14

x + y = 58

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A circle with a central that measures 125° has a diameter of 13 feet. What is the area of sector JKL? Use 3.14 for , and round y
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The local public transport authority is conducting research into commuter behaviour. A previous census indicated that the mean c
kondor19780726 [428]

Answer:

H_0:\mu  = 45 and H_a:\mu  < 45

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Step-by-step explanation:

Given

Random sample of 50 commuter times

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From the question, a previous census shows that:

\mu =45 and \sigma= 9.1

This is the null hypothesis i.e.

H_0:\mu  = 45

Reading further, a new test was to show whether the average has decreased.

This is the alternate hypothesis, and it is represented as:

H_a:\mu  < 45

Solving (b) and (c): The test statistic (T).

This is calculated using:

T = \frac{\mu}{\sigma/\sqrt n}

In this case:

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So:

T = \frac{45}{9.1/\sqrt{50}}

T = \frac{45}{9.1/7.07}

T = \frac{45}{1.29}

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Solving (c): Accept or reject null hypothesis

\alpha = 0.05

First calculate the degrees of freedom (df)

df = n - 1 = 50 - 1

d f = 49

From the t distribution table,

At: d f = 49,  \alpha = 0.05 and T = 34.88

the t score is:

p = 1.676

p > 0.05

<em>So, the null hypothesis is not rejected</em>

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2 years ago
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BabaBlast [244]

Answer:

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Hopefully this helped- have a great day)

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