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Marianna [84]
3 years ago
15

What is 2x+y=4 and 2x+y=-1

Mathematics
2 answers:
butalik [34]3 years ago
5 0

Answer:

{x,y} = {5,6}

Step-by-step explanation:

// Solve equation [1] for the variable  x

 [1]    x = y - 1

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

  [2]    2•(y -1) - y = 4

  [2]    y = 6

// Solve equation [2] for the variable  y

  [2]    y = 6

// By now we know this much :

   x = y-1

   y = 6

// Use the  y  value to solve for  x

   x = (6)-1 = 5

Damm [24]3 years ago
4 0
It’s a math question
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Answer:

A stone is thrown straight up from the edge of a roof, 750 feet above the ground at a speed of 14 feet per second. A) Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? B) At what time does the stone hit the ground? C) What is the velocity of the stone when it hits the ground?

Step-by-step explanation:

A stone is thrown straight up from the edge of a roof, 750 feet above the ground at a speed of 14 feet per second. A) Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? B) At what time does the stone hit the ground? C) What is the velocity of the stone when it hits the ground?

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2 years ago
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klio [65]

Answer:

ax + b= ax + b

Step-by-step explanation:

Infinite many solutions when both sides are equal

so

ax + b= ax + b

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3 years ago
Conjunction and disconjuction​
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LiRa [457]

Hey there ;-)

It will be <u>-13</u>,

as the other numbers can also be there in the inner circle.

<em>By </em><em>Benjemin</em> ☺️

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