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Irina18 [472]
3 years ago
5

Jillian is participating in a book-reading contest to raise funds for her local library. For every book Jillian reads, her mothe

r pledged to make a donation.
A: The table shows how much Jillian's mother will donate. Find the pattern, and give the amount her mother will donate for 9 and 21 books read.
(Btw it won't let me upload a pic of the table so this is what it said)

BR: 3. 5. 7
MD: $15. $25. $35

(Ps. BR means books read and MD means money donated)

B: Write an equation showing the pattern from the table. Identify the variables.

C: Graph the equation.

Mathematics
1 answer:
SpyIntel [72]3 years ago
3 0
The equation is y=5x
9 books =45
21 books =105

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Write an equation of the line that passes through (0,5) and (4,5). <br><br> plssss
Alenkasestr [34]
I believe it would be y=0x + 5
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The system of equations kx-5y = 2, 6x+2y = 7 has no solution, then k =
hoa [83]

Answer:

(d) -15

Step-by-step explanation:

Given system of equations are:

\begin{cases}kx-5y=2\\\\6x+2y=7\end{cases}

Since, given system of equations have no solution.

\therefore \frac{k}{6}=\frac{-5}{2} \neq\frac{2}{7}

\implies \frac{k}{6}=\frac{-5}{2}

\implies k=\frac{6(-5)}{2}

\implies k=\frac{-30}{2}

\implies k=-15

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3 years ago
What is the value of 5 + 1/4n if n=8
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Hope the shown work helps you!!

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For every 30 minutes of tv airtime,there are 8 minute commercials.If 90 minutes of tv airtime are aired,how many minutes of comm
Alex777 [14]

Answer:

For 90 minutes of TV there will be 24 mins of commercials


Step-by-step explanation:

You start with 30 and keep adding 30 mins each time until you get to 90. (So..30..60..90) each time you add 30mins you add 8 more minutes to the commercials)

30 mins tv----8mins commercials

60 mins tv----16mins commercials

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8 0
4 years ago
Please help:))))))
Veronika [31]

Answer:

1. 6x^2 + 4x - 4y

2. x - 10y.

3. 6x^5

4.  36 a^6 b^8

5. x^2 - 81

6. 9x^2 - 42x + 49

7. 12x^2 +3x - 42


Step-by-step explanation:

1. 3x^2+4x+3x^2-4y

Add the like terms, we get

6x^2 + 4x - 4y


2. (5x-2y)-(4x+8y)

Now distribute the negative sign, we get

5x - 2y -4x -8y

Simplify the like terms, we get

x - 10y.


3. 3x^3(2x)^2

Multiply the numbers and simplify the variables

6x^(3 +2)

6x^5

4. (-6a^3b^4)^2

Now bring the power 2 inside the parenthesis.

-6^2 a^6 b^8

= 36a^6b^8


5. (x+9) (x-9)

x^2 + 9x -9x - 81

x^2 - 81


6. (3x-7)^2

(3x - 7)(3x - 7)

9x^2 - 21x -21x + 49

9x^2 - 42x + 49


7. (3x+6) (4x-7)

12x^2 + 24x -21x - 42

12x^2 +3x - 42

Thank you.

8 0
3 years ago
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