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Anuta_ua [19.1K]
3 years ago
13

How do you solve this equation -6x + 7y =13 and -6x +8y =20 using elimination

Mathematics
1 answer:
ohaa [14]3 years ago
8 0

Answer:

x=6,y= 7

Step-by-step explanation:

-6x +7y= 13

-6x+8y=20

-y = -7

divide through by -1

y =7

sub y= 7 in equation 1

then x= 6

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Which quadratic function shows a y-intercept of 4 and a maximum value of 5
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Answer:

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Step-by-step explanation:

To have a maximum value, your parabola would have to open downwards. So the first 2 are wrong. Since your y-intercept is positive 4, your graph would have to touch the y axis at 4. The 3rd graph is wrong since it touches the y-axis at a negative point. The correct answer would be the 4th answer choice.

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Is 2/3 greater then1/5
Greeley [361]
Yes, it is. To find this out, you need to make the denominators the same. They can both multiply into 15, so we change the denominators to 15. Whatever we do to the bottom, we also have to do to the top.

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8 0
3 years ago
What is the solution to t - 3 ≤ 12?
melisa1 [442]

Answer:

t  ≤ 15

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
What does x equal for 8=2x+4
Alik [6]

Answer:

x=2

Step-by-step explanation:

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x = 2

6 0
3 years ago
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