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Archy [21]
3 years ago
9

a store owner paid $15 for a book. she marked up the price of the book by 40% to determine its selling price. what is the sellin

g price?
Mathematics
2 answers:
Hunter-Best [27]3 years ago
5 0

Answer:

$21

Step-by-step explanation:

40% of 15 is 6, and 15 + 6 is 21

Alexxandr [17]3 years ago
3 0

Answer:

37.5

Step-by-step explanation:

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(5x+2y=23<br> (13x+3y=51
AysviL [449]

Answer:

[3, 4]

Step-by-step explanation:

{5x + 2y = 23

{13x + 3y = 51

−5⁄13[13x + 3y = 51]

{5x + 2y = 23

{−5x - 1 2⁄13y = 19 8⁄13 >> New Equation

______________________

11⁄13y = 3 5⁄13

_____ ______

11⁄13 11⁄13

y = 4 [Plug this back into both equations above to get the x-coordinate of 3]; 3 = x

I am joyous to assist you anytime.

7 0
3 years ago
Determine the vertex of the function f(x) = 3x2 – 6x + 13. 1. Identify the values of a and b. a = and b = 2. Find the x-coordina
Sveta_85 [38]
F(x)=3x²-6x+13
a=3, b=-6, c=13
the x coordinate of the vertex is x=-b/(2a), so x=-(-6)/(2*3)=1
when x=1, y=3(1)²-6(1)+13=10
the vertex is at (1,10)

answers are in bold. 
5 0
3 years ago
Read 2 more answers
Please help me i don’t know how to solve this
murzikaleks [220]

Answer:

welp good luck ha

Step-by-step explanation:

3 0
3 years ago
What can you use to find how many centimeters in 0.24 meter
Llana [10]

Answer:

24

Step-by-step explanation:

From meter to cm multiply by 100

4 0
3 years ago
What is the answer to…<br><br> 1 &gt; x - 6
Ratling [72]

Answer:

x < 7

Step-by-step explanation:

Flip the equation to make it easier: x - 6 < 1

Move 6 to the other side and change sign: x < 1 + 6

Do simple addition: x < 7

7 0
3 years ago
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