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Softa [21]
1 year ago
7

{x + 8y = -16 {x-3y = -5

Mathematics
2 answers:
Anna007 [38]1 year ago
8 0

Answer: y= -1 and x=-8

x+8y=-16

x=-8y-16

so x-3y=-5

-8-16-3y=-5

-11y-16=-5

-11y=-5+16

-11y=11

y=-1

x-3y=-5

x+3=-5

x=-8

kondaur [170]1 year ago
6 0
Answer: x = -8 and y = -1

Step-by-Step Solution:

=> x + 8y = -16 (Eq. 1)
=> x - 3y = -5 (Eq. 2)

Subtracting Eq. 2 from 1, we get :-

8y + 3y = -16 + 5
11y = -11
y = -11/11
=> y = -1

Therefore, y = -1

Substitute value of ‘y’ in Eq. 2 :-

x - 3y = -5
x - 3(-1) = -5
x - -3 = -5
x + 3 = -5
x = -5 - 3
x = -5 + -3
=> x = -8

Therefore, x = -8

Hence, x = -8 and y = -1 (-8, -1)
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C. 2

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7 0
3 years ago
Bus stop Restaurant sell 3/4 as many cheeseburgers as they do with hamburgers on any given day. If there are a total of 42 burge
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Answer:

24cb 18 hb

Step-by-step explanation:

Let's call C the number of cheese burger sold and H the number of hamburgers.

As the cheeseburger sold are 3/4 of hamburgers, we can represent with the following equation:

C= (3/4)H (equation 1)

The total of burgers sold are the total of cheeseburger plus the total of hamburgers, and the sum 42. The equation representing it is:

C + H = 42

Replacing C by its value of eq. 1:

(3/4)H + H = 42

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Dividing both sides by (7/4)

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H= 42*(4/7)

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Then, C is:

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C= 3*24/4

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We can verify it summing C+H

C+H=24+18=42 verified!

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3 years ago
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sleet_krkn [62]
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Solve inequality -8x+4≤36.
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\bf{-8x+4\leq 36 }

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\bf{x\geq \dfrac{32}{-8}  }

Divide 32 by −8 to get −4.

\bf{x\geq -4 \ \ \Rightarrow \ \ \ Answer }

<h2>{ Pisces04 }</h2>
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