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son4ous [18]
2 years ago
9

Please help me. I will make Brainliest

Mathematics
1 answer:
miv72 [106K]2 years ago
7 0
I believe the correct answer is D
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8. Solve the system using elimination.<br> 3x - 4y = 9<br> - 3x + 2y = 9
olga nikolaevna [1]

Answer:

3x−4y=9 −3x+2y=9

Add these equations to eliminate x: −2y=18

Then solve−2y=18

for y: −2y=18 −2y −2 = 18 −2 (Divide both sides by -2)

y=−9

Now that we've found y let's plug it back in to solve for x.

Write down an original equation: 3x−4y=9

Substitute−9for y in 3x−4y=9: 3x−(4)(−9)=9

3x+36=9(Simplify both sides of the equation)

3x+36+−36=9+−36(Add -36 to both sides)

3x=−27 3x 3 = −27 3 (Divide both sides by 3) x=−9

Answer: x=−9 and y=−9

Hope This Helps!!!

4 0
3 years ago
In the xy-coordinate plane shown, line L passes through point C and has a slope of -2. A dilation of line {with center A and a s
masya89 [10]

Answer:

C' (-4 , 2)

slope of new line = line "L" = -2

Step-by-step explanation:

C (x₀,y₀): (0,2)    dilation center (h,k): (2,2)     scale factor (sf): 3

C' (x,y)

x = 2 + 3*(0-2) = -4            x = h + sf*(x₀ - h)

y = 2 + 3*(2-2) = 2             y = k + sf*(y₀ - k)

C' (-4 , 2)

slope of new line = line "L" = -2

8 0
2 years ago
10 more than the quotient of a number and 8 is at least 12. - how would I write this in a "algebraic expression"?
Sonja [21]
X - the number
the quotient of the number and 8 = x/8
10 more than the quotient of the number and 8 = (x/8)+10
10 more than the quotient of the number and 8 is at least 12 = (x/8)+10≥12

\frac{x}{8}+10 \geq 12
4 0
3 years ago
3691 as a rational number3691 as a rational number
charle [14.2K]

Answer:

Yes its a rational number

Step-by-step explanation:

4 0
3 years ago
Janell can walk 3 3/4 miles in 1 1/2 hours. At that rate, how many miles can Janell walk in 4 hours?
Ludmilka [50]

HEY CARINA ITS SHANTAE, MI A LOOK FI THE ANSWER TO


7 0
3 years ago
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