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Phantasy [73]
3 years ago
10

4. Which ordered pair is a solution of the equation y = 4x?

Mathematics
2 answers:
g100num [7]3 years ago
8 0
The answer would be (-1,-4) because -1 is the z factor and -4 is the why then solve to make them equal the same thing. 
andrew11 [14]3 years ago
8 0
(-1,-4)  is the solution

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The value y of varies directly with x. When y = 19.375, x = 7.75.
Bingel [31]

Answer: (X,Y) = (0.4, 7.75)

Step-by-step explanation:

Y=7.75,

19.375X=7.75

Then solve for X

Divide 19.375 on both sides to get X=0.4

Y=7.75

X=0.4

6 0
3 years ago
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Ignore circled one and work it out please​
mash [69]

Answer:

a. \frac{(x-7)}{x^2+x-30}

Step-by-step explanation:

\huge \frac{x^2-3x-28}{(x^2+10x+24)(x-5)} \\\\\huge {=\frac{x^2-7x+4x-28}{(x^2+6x+4x+24)(x-5)}}\\\\\huge {=\frac{x(x-7)+4(x-7)}{\{x(x+6)+4(x+6)\}(x-5)}}\\\\\huge {=\frac{(x-7)(x+4)}{(x+6)(x+4)(x-5)}}\\\\\huge {=\frac{(x-7)}{(x+6)(x-5)}}\\\\\huge {=\frac{(x-7)}{x^2+(6-5)x+6(-5)}}\\\\\huge {=\frac{(x-7)}{x^2+x-30}}

3 0
3 years ago
There are 1200 students at a school and 390 of them are boys if each classroom holds 30 students how many classrooms are needed
vodomira [7]

Answer:

40 classrooms

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1200-390= 810

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5 0
2 years ago
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3 0
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