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Lerok [7]
3 years ago
10

Which ordered pair solves the system of equations?

Mathematics
1 answer:
Serggg [28]3 years ago
7 0

Answer:

(1;1)

Step-by-step explanation:

1. if y=2x-1, then it is possible to substitute 2x-1 into the 2d equation:

5x-4(2x-1)=1, ⇒ 5x-8x+4=1, ⇔ -3x=-3, ⇔ x= 1;

2. if x=1, then y=2x-1=2-1= 1.

3. the required pair is (1;1)

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Firdavs [7]

Answer: 180 cookies


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3 years ago
Solve the inequality -d ≥ 0.5
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d ≤ -0.5

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A movie theater sold 800 tickets and made $4400 in one night. If an adult ticket costs $8 and a children's ticket costs $4, how
zhenek [66]
Let x = adult tickets
Let y = children's tickets

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3 years ago
How did they get this
katrin2010 [14]
Somewhere in the text, it must say that x = 2 and y = -1 or else, the values just seem made up out of thin air. 
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