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xxMikexx [17]
3 years ago
15

How many solutions does this linear system have? Y=2x-5 -8-4y=-20

Mathematics
2 answers:
nataly862011 [7]3 years ago
8 0
The answer is 3.Good luck
Kobotan [32]3 years ago
6 0

Answer:

Infinite number of solutions.

Step-by-step explanation:

/ Solve equation [1] for the variable  y  

 [1]    y = 2x - 5

// Plug this in for variable  y  in equation [2]

  [2]    -4•(2x-5) + 8x = 20

  [2]    0 = 0 =>  Infinitely many solutions

Infinitely many solutions

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Step-by-step explanation:

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3 years ago
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What is the area of the square if one side is 4cm? How do you know?
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Step-by-step explanation:

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Find the common ratio for the geometric sequence defined by the formula: an=40(2‾√)n−1 a n = 40 ( 2 ) n − 1
WITCHER [35]

The ratio of the geometric sequence 402^{n-1} is 2.

Given that geometric sequence is 40*2^{n-1} and we have to find the common ratio of all the terms.

Geometric sequence is a sequence in which all the terms have a common ratio.

Nth termof a GP is ar^{n-1} in which a is first term and r is common ratio.

Geometric sequence=40*2^{n-1}

We have to first find the first term, second term and third term of a geometric progression.

First term=40*2^{1-1}

=40*2^{0}

=40*1

=40

Second term=40*2^{2-1}

=40*2^{1}

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Third term=40*2^{3-1}

=40*2^{2}

=40*4

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Ratio of first two terms=80/40=2

Ratio of next two terms=160/80=2

Hence the common ratio of geometric sequence is 2.

Learn more about geometric progression at brainly.com/question/12006112

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4 0
2 years ago
A dog weighs two pounds less than three times the weight of a cat. The dog also weights twenty-two more pounds than the cat. Wri
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Answer:

the cat weighs 21 pounds.

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cat = x

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4 0
3 years ago
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Answer:

1 1/8

Step-by-step explanation:

3/8+ 3/8= 6/8+3/8=1 1/8

7 0
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