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kipiarov [429]
3 years ago
10

Test each of the following for divisibility by 2, 3, 4, 5, 6, 8, 9, and 10.

Mathematics
1 answer:
Artemon [7]3 years ago
4 0
The answer is 3 for all of them
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Worth 33 points each!!
gogolik [260]

Where <em>x </em>is the number of books sold, <em>i </em>is income, and <em>c </em>is cost:

<em>c = 4x + 3500 </em> ($4 per book plus the 3500 flat marketing fee)

<em>i = 15x </em>($15 per book)

You are looking for the point where these intersect: the intersection is where the income is equal to the cost, and at any point after that the income is greater than the cost. So, set the equations equal to each other:

<em>4x + 3500 = 15x     </em>

subtract 4x from both sides

<em>3500 = 11x</em>              

divide both sides by 11

<em>x = 318.181818</em>

So, you would have to sell a minimum of 319 books in order to make a profit.

3 0
3 years ago
Read 2 more answers
Find the nonpermissible replacement for a in this expression 8/-9a
Soloha48 [4]
The variable a  cannot be zero because that would make -9a = zero  and   8 divided by zero is indeterminate.
7 0
3 years ago
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What is the value of y?
AnnyKZ [126]

Answer:y= 47/20

Step-by-step explanation:

8 0
2 years ago
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A line passes through the point (4,–2) and is perpendicular to the line with the equation y = 2∕3x + 4. What's the equation of t
prisoha [69]

Answer:

Step-by-step explanation:

perp. -3/2

y + 2 = -3/2(x - 4)

y + 2 = -3/2x + 6

y = -3/2x + 4

answer is D

5 0
3 years ago
If you are good at money and math, please look at the screenshot below and help me! I think some ppl will think this is easy.
Verizon [17]

Answer:

150 for lower seats and 200 for higher seats

Step-by-step explanation:

Need two equations and then solve using substitution method:

Equation 1 for tickets sold:

$35x + $25y = $10,250

Equation 2 for quantity (number #) of tickets sold:

x + y = 350

Use substitution method:

y = 350 - x

35x + 25 (350 - x) = $10,250

35x + $8750 - 25x = $10,250

10x + $8750 = $10,250

        - $8,750       -$8,750

10x = 1,500

x = 150

 

y = 350 - 150

y = 200

Check the answers:

$35 (150) + $25 (200) =

$5,250 + $5,000 = $10,250

7 0
2 years ago
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