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Dafna1 [17]
3 years ago
6

The cost of having photos taken includes a sitting fee and $12 for each portrait. The cost of 3, 6, and 9 photos respectively is

$51, $87, and $123. What is the sitting fee? Use units in your answer and round answer to the hundredths place, for example $2.35
plz help
Mathematics
2 answers:
Karolina [17]3 years ago
7 0

Answer:

The sitting fee is 15 dollars

Step-by-step explanation:

1 - 12 x 3 = 36

2 - 51 - 36 = 15

3 - 12 x 6 = 72

4 - 87 - 72 = 15

ElenaW [278]3 years ago
3 0

Answer:

$15.00

Step-by-step explanation:

cost of photos = sitting fee + $12 per photo

Let the number of photos = x

Let the sitting fee = s

cost of photos = s + 12x

cost of 3 photos = $51

s + 12(3) = 51

s + 36 = 51

s = 15

Answer: The sitting fee is $15.00

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The function f(x) = x2 + 10x - 3 written in vertex form is f(x) = (x + 5)2 – 28. What are the coordinates of the vertex?
alina1380 [7]

Answer:

<h2>(-5, -28)</h2>

Step-by-step explanation:

The vertex form of a quadratic function <em>f(x) = ax² + bx + c</em>:

f(x) = a(x - h)² + k

(h, k) - coordinates of a vertex

We have <em>f(x) = x² + 10x - 3</em> in the vertex form <em>f(x) = (x + 5)² - 28</em>.

f(x) = (x - (-5))² + (-28) → h = -5, k = -28

6 0
3 years ago
I don’t understand because I’m not good with money
lakkis [162]
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4 0
4 years ago
X/w = z/y². solve for y​
jek_recluse [69]

Answer:

Step-by-step explanation:

We can simplify (cross multiply) to get xy^2=wz

Then we easily simplify to get y=\sqrt{\frac{wz}{x}},\:y=-\sqrt{\frac{wz}{x}};\quad \:w\ne \:0,\:x\ne \:0

8 0
3 years ago
44+40=?<br> Write the sum of the numbers as the product of their GCF and another sum?
Pavel [41]

Answer:

GCF = 4

Answer is 84

Step-by-step explanation:

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8 0
4 years ago
Read 2 more answers
Plz help me and plz no links first person to answer it correctly will get brainliest
marta [7]

Answer:

B

Step-by-step explanation:

The standard form of a circle equation is:

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We can plug in the given values to get:

(x - 1)^2 + (y - 2)^2 = 3^2

This is the sam as option B

8 0
3 years ago
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