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ankoles [38]
3 years ago
5

After the drama club sold 100 tickets to a show, it had $300 in profit. After the next show, it had sold a total of 200 tickets

and had a total of $700 profit. Which equation models the total profit, y, based on the number of tickets sold, x?
A. y + 300 = 2.5 (x + 100)
B. y - 300 = 4 (x - 100)
C. y - 300 = 2.5 (x - 100)
D. y + 300 = 4 (x + 100)
Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

B. y-300=4(x-100)

Step-by-step explanation:

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3 years ago
An article estimates, with 90% confidence, that the proportion of elementary school teachers who are female is 82%. The article
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Answer:   (80% , 85%)

Step-by-step explanation:

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5 0
3 years ago
1. is he equation true , false, or open
RideAnS [48]

Question 1:

For this case we have the following equation:

 5x ^ 2 = 6x + 11

We observe that the equation is a polynomial of the second degree.

Therefore, the equation has two possible solutions.

The variable of the equation for this case is x.

In this case, we have an open equation because we have a variable.

Rewriting the equation we have:

5x ^ 2 - 6x - 11 = 0

Answer:

open, there is a variable.


Question 2:

For this case we have the following equation:

 2-8x = -6

From here, we must clear the value of x.

For this, we follow the following steps:

1) Pass the value of 8x adding:

2 = -6 + 8x

2) Pass the value of 6 adding:

2 + 6 = 8x

3) Add the values ​​on the same side of equality:

 8x = 8

4) Pass the 8 to divide:

x = \frac{8}{8} = 1

Answer:

The value of x is given by:

x = 1


Question 3:

For this case we have the following equation:

 y = x-4

The ordered pair solution is the one that satisfies both sides of the equation.

For the point (6, 2) we have:

x = 6  y = 2

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2 = 6-4  2 = 2

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Answer:

An ordered pair that is a solution of the equation y = x-4 is:

(6, 2)

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