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Gwar [14]
3 years ago
7

A) Work out the value of 19 + 7 divided by 2-5

Mathematics
1 answer:
agasfer [191]3 years ago
8 0

Answer: -8.66666666667

Step-by-step explanation: Do it step by step. So 19+7= 26

Then 2-5= 3

So 26 divided by -3 = -8.66666666667

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A) 120 is what percentage of 30
scZoUnD [109]

Answer:

a ) 400 percent

b )  n = 25

c)  n= 36

Step-by-step explanation:

Is means equals, of means multiply and percents need to be changed to decimals.

a) 120 is what percentage of 30

120 = P * 30

Divide each side by 30

120/30 =P* 30/30

4 = P

Multiply by 100 to give the percentage

4 * 100

400 percent


b) 30 is 120% of what number

30 = 1.2 * n

Divide each side by 1.2

30/1.2 = 1.2n/1.2

25  = n


c) what number is 30%of 120

n = .3 * 120

n =36


3 0
3 years ago
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Express your answer as a polynomial in standard form.
Juli2301 [7.4K]

Answer:

(f o g)(x) = -2x² - x + 4

Step-by-step explanation:

f(x) = -x + 6

g(x) = 2x² + x + 2

To find (f o g)(x), you need put g(x) into f(x).

f(x) = -x + 6

(f o g)(x) = -(2x² + x + 2) + 6

(f o g)(x) = -2x² - x - 2 + 6

(f o g)(x) = -2x² - x + 4

8 0
3 years ago
What is 2 x + 2y equals negative 6 coordinate
Andrews [41]
This is solved for all values of
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3 0
3 years ago
Groks mother weighed
shusha [124]

Answer:

62 Kg

Step-by-step explanation:

Let g = weight of Grok last year in kg

m = weight of Grok's mother last year in kg

m = 3g

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since m = 3g

(3g)-4 = 2(g+9)

3g -4 = 2g + 18

3g-2g = 18+4

g = 22

m = 3*22

= 66

Note that:

g+9 = weight of Grok now

m-4 = weight of Grok's mother now

Grok weighs 31 Kg now

Grok's mother weighs 62 Kg now

4 0
3 years ago
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What's the value of given expression :
Paladinen [302]

Answer:

\sqrt{01 \times 10 \times 01 \times 10}  \\  =  \sqrt{1 \times 10 \times 1 \times 10}  \\  =  \sqrt{10 \times 10}  \\  = 10 \\ thank \: yoy

8 0
3 years ago
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