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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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The left and right page numbers of an open book are two consecutive integers whose sum is 23. Find these page number.
zavuch27 [327]

Answers: The page numbers are 11 and 12

==========================================================

Explanation:

Consecutive integers are ones that follow immediately after another. For example, the set {7,8,9,10} are consecutive.

Let,

  • x = first page, some positive whole number
  • x+1 = second page, follows immediately after page x

Adding those two said pages will lead to 23

first + second = 23

(x) + (x+1) = 23

2x+1 = 23

2x = 23-1

2x = 22

x = 22/2

x = 11 is the first page

x+1 = 11+1 = 12 is the second page

Check: 11+12 = 23 which confirms the answers.

8 0
2 years ago
 what is perpendicular to y= 3x -9 and passes through the point (3,1)
GREYUIT [131]
(3,1) , \ \ y= 3x -9 \\ \\ The \ slope \ is :m _{1} =3 \\ \\ If \ m_{1} \ and \ m _{2} \ are \ the \ gradients \ of \ two \ perpendicular \\ \\ lines \ we \ have \ m _{1} \cdot m _{2} = -1 \\ \\3\cdot m_{2}=-1 \ \ /:3\\ \\ m_{2}=-\frac{1}{3}

\Now \ your \ equation \ of \ line \ passing \ through \ (3,1) would \ be: \\ \\ y=m_{2}x+b \\ \\1=-\frac{1}{ 3} \cdot3 + b

1=-1+b\\ \\ b=1+1\\ \\b=2 \\ \\ y =- \frac{1}{3}x+2


6 0
3 years ago
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uysha [10]
If you do not mind me asking, what did Seth write? Us helpers cannot answer it if we do not have the full question. I apologize if this seems rude.
6 0
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Markuo spends $27 on some plants. Each plant costs $9. How many plants does he buy?
kicyunya [14]

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He can buy 3 plants

Step-by-step explanation:

$27 is the total amount of money he can spend, if each plant costs $9 the equation would be like this:

9x = 27

Divide 27 by 9 because division is the opposite operation to multiplication

x = 3

6 0
3 years ago
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