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zysi [14]
2 years ago
5

Which graph represents this system? 2x-5y=-5 y = ² x + 1 5

Mathematics
1 answer:
frosja888 [35]2 years ago
7 0

Answer:

x =  \frac{5(y - 1)}{2}  \\  \\ x =  \frac{y - 1}{2}

Step-by-step explanation:

2x =  - 5 + 5y \\ 2x = 5y - 5 \\ x =  \frac{5y - 5}{2}  \\  \\ y - 1 = 2x \\  \frac{y - 1}{2}  = x

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(4,6), (6,8), (8,10)

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3 years ago
Simplify -40/7+8-23/7
Oduvanchick [21]

Answer:

-1

Step-by-step explanation:

-40/7+8-23/7

= -40/7+8-23/7

= 16/7-23/7

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2 years ago
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3 0
3 years ago
Of the following equations below, which equation represents a direct variation between x and y?
spin [16.1K]

Answer:

C. y +3 = x +3

Step-by-step explanation:

We need to find in below option x has direct variation with y.

We solve for each;

A. 2y = 3x-7

From above equation we can state that 2 times y is equal to 7 less than 3 times of x.

Hence it doesn't represent direct variation.  

B. y-4 = x+6

Solving above expression we get;

y-4 = x+6\\y = x+6+4\\y=x+10

From above equation we can state that y is equal to 10 more than x.

Hence it doesn't represent direct variation.

C. y+3 = x+3

Solving above expression we get;

y+3 = x+3\\y = x+3-3\\y=x

From above equation we can state that y is equal to x.

Hence it represent direct variation.

D. 4y+1 = 4x-1

Solving above expression we get;

4y+1 = 4x-1\\4y = 4x-1-1\\4y=4x-2

From above equation we can state that 4 times y is equal to 2 less than 4 times of x.

Hence it doesn't represent direct variation.

Hence the Answer which represent direct variation of x and y is,

C. y+3 = x+3

7 0
3 years ago
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kiruha [24]

Answer:

Step-by-step explanation:

Jackie will finish her breakfast at 7:25 plus 20 minutes= 7:45 AM

3 0
3 years ago
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