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Agata [3.3K]
2 years ago
10

B. What is 39% of 200?

Mathematics
2 answers:
skad [1K]2 years ago
7 0
The answer is 78.

First you divide 39 by 100. (which is 0.39)

Then multiply by 200 (78)
Pachacha [2.7K]2 years ago
4 0

Answer:

78

Step-by-step explanation:

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Find a quadratic function that includes the set of values below.
Mariana [72]

Answer:

f(x) = -3x^2 + 10x + 3

Step-by-step explanation:

(0,3) (2,11)(3,6)

Using the form ax^2 + bx + c = y

From the first set we know that c = 3

Write an equation for the last two sets

x=2; y=11

a(2^2) + b(2) + 3 = 11

4a + 2b = 11 - 3

4a + 2b = 8

simplify divide by 2

2a + b = 4

and

x=3, y=6

9a + 3b + 3 = 6

9a + 3b = 6 - 3

9a + 3b = 3

simplify divide by 3

3a + b = 1

:

Use elimination to find a

3a + b = 1

2a + b = 4

--------------subtracting eliminate b

a = -3

Find b using the equation 2a + b = 4

2(-3) + b = 4

b = 4 + 6

b = 10

:

The equation: f(x) = -3x^2 + 10x + 3

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3 years ago
If 60 is increased by 10%, what is the new amount
mylen [45]
10 percent of 60 is 6. So 60+6= 66
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Does anyone know the answer?
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<em>value \: of  \: x \: is \: 210 \\please \: see \: the \: attached \: picture \\ for \: full \: solution \\ hope \: it \: helps</em>

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