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finlep [7]
3 years ago
15

The sum of a number and two equal to negative seven. Translate this sentence to an equation and then find the number

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
6 0

Answer:

-9

Step-by-step explanation:

x+2=-7

x+2-2=-7-2

x=-9

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Which of the following is true about the system 4/3x−2/5y=2 and 3x−2y=−1?
lilavasa [31]

Equation 1 is \frac{4}{3}x -\frac{2}{5}y =2 ,

Equation 2 is [/tex] 3x-2y = -1 [/tex]

for first equation LCD= 3 *5 = 15 , So we multiply whole equation by 15

\frac{4}{3} *15x -\frac{2}{5}*15 y =2*15

20x - 6y = 30

Now multiply second equation by -3 , to make the coefficient of y equal and opposite , so that we can apply the elimination method

-9x+6y = 3

Add both the equations

20x -9x -6y +6y = 30+3

11x= 33

Divide both sides by 11

x=3

Plug in any one of the equation we get

3(3) -2y = -1

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subtract 9 from both sides

-2y = -10

divide both sides by -2

y=5

So the solution is x= 3 , y= 5

Which means

a. The system is consistent and independent. TRUE

7 0
3 years ago
3 1183 long division​
Triss [41]
= 394 R 1

= 394 1/3

1183 divided by 3 equals
394 with a remainder of 1
3 0
3 years ago
What is the GCF of 4and 2
Hoochie [10]

Answer:

2

Step-by-step explanation:

GCF stands for the "greatest common factor." Therefore because 2 can go into both 2 and 4 evenly, it is the GCF.

3 0
3 years ago
PLEASE I REALLY NEED HELP> DONT SKIP. NO LINKS PLEASE. BRANLIEST WILL BE GIVEN
LiRa [457]

Answer:

A. 165 ft²

Step-by-step explanation:

volume = (½×5×6) x 11

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= 165 ft²

8 0
3 years ago
Read 2 more answers
Can someone help ? ASAP thanks
Ahat [919]

Answer:

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