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lilavasa [31]
2 years ago
14

A dance school charges a registration addition to a fee per lesson. The equation is y=30x+25 represents the total cost x lessons

. What is the cost per lesson?
Mathematics
2 answers:
Alexxandr [17]2 years ago
8 0
That would be the slope of this straight line; it's 30 units / lesson, e. g., $30/lesson.  The $25 is the registration and/or up-front cost.

Anton [14]2 years ago
7 0
The answer would be 30. You have to find the slope. You can use this formula, y=mx+b and then get the slope. $30 per lesson and the $25 is the up-front cost or the registration fee. That should help
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deff fn [24]

Answer:

See attached

Step-by-step explanation:

-> Also see attached

Have a nice day!

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2 years ago
A group conducted a poll of 2083 likely voters just prior to an election. The results of the survey indicated that candidate A w
mart [117]

Answer:

With the given margin of error its is possible that candidate A wins and candidate B loses, and it is also possible that candidate B wins and candidate A loses. Therefore, the poll cannot predict the winner and this is why race was too close to call a winner.

Step-by-step explanation:

A group conducted a poll of 2083 likely voters.

The results of poll indicate candidate A would receive 47​% of the popular vote and and candidate B would receive 44​% of the popular vote.

The margin of error was reported to be 3​%

So we are given two proportions;

A = 47%

B = 44%

Margin of Error = 3%

The margin of error shows by how many percentage points the  results can deviate from the real proportion.

Case I:

A = 47% + 3% = 50%

B = 44% - 3% = 41%

Candidate A wins

Case II:

A = 47% - 3% = 44%

B = 44% + 3% = 47%

Candidate B wins

As you can see, with the given margin of error its is possible that candidate A wins and candidate B loses, and it is also possible that candidate B wins and candidate A loses. Therefore, the poll cannot predict the winner and this is why race was too close to call a winner.

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2 years ago
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