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egoroff_w [7]
3 years ago
15

What’s The elimination 7x+4y=-4 5x+8y=28

Mathematics
1 answer:
erica [24]3 years ago
6 0

Answer:

7x + 4y = -4

5x + 8y = 28

II - 2*I

- 9·x = 36 --> x = -4

7*(-4) + 4y = -4 --> y = 6

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VladimirAG [237]

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6 0
3 years ago
A triangular bandana has an area of 78 square inches. The height of the triangle is 9 3 4 inches. Enter and solve an equation to
brilliants [131]

 Area of triangle = 1/2 x base x height:

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156 = base x 9 3/4

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5 0
2 years ago
Please help me I need help with answer
Rufina [12.5K]

Answer:

+30 + -25

Savings is positive

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Step-by-step explanation:

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+30

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7 0
3 years ago
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svet-max [94.6K]

Answer:

3 + (-2)

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5 0
3 years ago
A total of 8,844 people went to the football game.
Alex787 [66]

Number of people sat in each section on visitor side is equal to 468

<u>Solution:</u>

Given that  

Total number of people went to football game = 8844

Also given 5,100 sat on the home side and the rest sat on  the visitor'a side.

Means Number of people sat on the home side = 5100

And remaining Number of people sat on the visitor side = Total number of people went to football game - Number of people sat on the home side

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Also given people sitting on the visitor's side filled 8 equal-sized sections

Need to calculate people sat in each section that is number of people on side in 1 section.

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=> number of people sitting in 1 section on visitor side = \frac{3744}{8}=468

Hence 468 people sat on each section

3 0
4 years ago
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