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77julia77 [94]
3 years ago
5

Which matrix represents the solution to the system of equations below?

Mathematics
1 answer:
boyakko [2]3 years ago
5 0

Answer:

The one that's include a rows 2 1 1 2

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Determine the slope and y-intercept of the graph:<br> 2x + 5y = 10
FinnZ [79.3K]

Slope is -2/5 and y-intercept is 2

Step-by-step explanation:

  • Step 1: Write the equation in slope-intercept form y = mx + b

2x + 5y = 10

5y = -2x + 10

y = -2/5 x + 10/5

y = -2/5 x + 2

  • Step 2: Find the slope and y-intercept from the equation.

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Four times the first number minus three times the second number is 2. Two times the first number increased by three times the se
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Answer:

First number is -2.5

Second number 5

Step-by-step explanation:

Four times the first number minus three times the second number is 2.

To represent this statement, 4x -3y =2

Two times the first number increased by three times the second is 10.

To represent thsi statement, 2x+ 3y = 10

4x - 3y = 2

2x + 3y =10

4x - 2x = 2x

2x = -5

x= -2.5

The first number is -2.5

By using Substitution

2x + 3y = 10

2(-2.5) + 3y = 10

-5 + 3y = 10

3y = 10 +5

3y =15

y = 5

The second number is 5

....To check my answer

-5 + 15 = 10

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If three friends posted 15 comments each, how many comments will there be overall?
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15 times 3 equals  45 hoped i helped

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After 12 hours the pound would have 720 pounds of algae.
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-24+15-6=x
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Answer:

x = -15

Step-by-step explanation:

-24 + 15 - 6 = x

-9 - 6 = x

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