MATHEMATICS MIDDLE SCHOOL

Which answer is a solution of the equation?2x + y = 5

A. 5
B. (1, 2)
C. (2, -1)
D. (3, -1)

Thank you everyone!

Answers

Answer 1
Answer:

2x + y = 5

Put the coordinates of the points to the equation and check it:

A. 5 - not make sense

B. (1, 2) - x = 1, y = 2

2(1) + 2 = 2 + 2 = 4 ≠ 5  NOT

C. (2, -1) - x = 2, y = -1

2(2) + (-1) = 4 - 1 = 2 ≠ 5    NOT

D. (3, -1) - x = 3, y = -1

2(3) + (-1) = 6 - 1 = 5    YES

Answer: D. (3, -1).

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Answer:52


Step-by-step explanation:

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Then..

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Then..

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Lastly..

47+5 = 52

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So it says A NUMBER We don't know what number SO we are gonna add any variable you want.
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is means equal
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Answers

The length of a thigh bone in meters = 0.48 meters

What is conversion of units?

"It is the conversion between different units of measurement for the same quantity."

For given question,

The femur, or thigh bone, of an average human is 480 millimeters long.

Let 'l' be the length of a thigh bone.

l = 480 millimeters

We know that, 1 meter = 1000 millimeters

So, 1 millimeter = 0.001 meter

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Learn more about the conversion of units here:

brainly.com/question/9484490

#SPJ2
The correct answer is .48 meters
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