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AnnZ [28]
3 years ago
7

In the past year Pablo watched 12 movies that he thought were very good. He watched 60 movies over the whole year. Of the movies

he watched, what percentage did he rate as very good?
Mathematics
1 answer:
kumpel [21]3 years ago
7 0

It would be 20 percent, I believe. First you would put it into a fraction of 12\60, then you would simplify that into 3\15 then divide as shown. You end up with .2 which would be 20 percent.

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Which of the factors of 120 are composite numbers?
Pani-rosa [81]

Answer:

Find a common prime factor in each of these pairs of numbers

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6 0
3 years ago
Put the quadratic into vertex form and state the coordinates of the vertex. y= y= \,\,x^2-6x-3 x 2 −6x−3
enot [183]

Answer:

y = (x - 3)^2 - 12

(3,-12)

Step-by-step explanation:

Given

y = x^2 - 6x - 3

Solving (a): In vertex form

The vertex form of an equation is:

y = a(x - h)^2 + k

To do this, we make use of completing the square method.

We have:

y = x^2 - 6x - 3

------------------------------------------------------------------

Take the coefficient of x (i.e. -6)

Divide by 2; -6/2 = -3

Square it: (-3)^2 = 9

Add and subtract the result to the equation

------------------------------------------------------------------

y = x^2 - 6x - 3

y = x^2 - 6x + 9 - 9 - 3

y = x^2 - 6x + 9 - 12

Factorize x^2 - 6x + 9

y = x^2 - 3x-3x + 9 - 12

y = x(x - 3)-3(x - 3) - 12

Factor out x - 3

y = (x - 3)(x - 3) - 12

Express as squares

y = (x - 3)^2 - 12

Hence, the vertex form of y = x^2 - 6x - 3 is: y = (x - 3)^2 - 12

Solving (b): State the coordinates of the vertex.

In y = a(x - h)^2 + k; the vertex is: (h,k)

The vertex of y = (x - 3)^2 - 12 will be (3,-12)

3 0
2 years ago
***WORTH 60 POINTS*** solve for y if x = 5 . [y = -7x -6]
zheka24 [161]

Answer:

y = -41

Step-by-step explanation:

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4 0
3 years ago
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Bingel [31]
Can you give me the problem
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Which fraction is equal to 15%
Andreas93 [3]

Answer:

15/100 this is the fraction for 15%

7 0
3 years ago
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