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finlep [7]
4 years ago
12

Solve for x and y. 3x+8y=20. 5x+3y=23

Mathematics
2 answers:
GrogVix [38]4 years ago
6 0

Answer:

x=4 and y=1

Step-by-step explanation:

Equation 1) 3x+8y=20  

Equation 2) 5x+3y=23

Equation 1) 5(3x+8y=20 )  

Equation 2) 3(5x+3y=23)

15x+40y=100

15x+9y=69

(Take away 40y from 9y and 100 from 69)

31y = 31

y=1

Substitute y=1 into equation 1)

3x+8=20

(Take away 8 from both sides)

3x=12

(Divide by 3)

x=4

Virty [35]4 years ago
4 0

Answer:

Equation 1:

x= -8/3y + 20/3

y= -3/8x + 5/2

Equation 2:

x= -3/5y + 23/5

y= -5/3x + 23/3

Step-by-step explanation:

SEE BELOW FOR STEPS

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Answer:

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7 0
3 years ago
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What is the remainder of (3x^4+2x^3-x^2+2x-14)/ (x+2)
Allisa [31]

Hi,

I assume the forward slash meant it as a fraction VS it being a division symbol. To answer your question, the remainder is 10.

Hope this helps.

4 0
3 years ago
I need the answer here is the question:
lukranit [14]
Answer: 4/7

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4 0
3 years ago
Find the scale factor for the dilation. please show your work.<br><br> X (3. 6) X' (2, 4)
Anastasy [175]

Answer:

Step-by-step explanation:

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3 years ago
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ki77a [65]

Answer:

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Step-by-step explanation:

Solve for x:

5 x - 10 + 65 = 90

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Subtract 55 from both sides:

5 x + (55 - 55) = 90 - 55

55 - 55 = 0:

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Divide both sides of 5 x = 35 by 5:

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3 years ago
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