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shutvik [7]
3 years ago
15

Solve and graph this system of equations x+2y=5 and 3x=15-6y

Mathematics
1 answer:
Bogdan [553]3 years ago
3 0

Answer:

(x,y)=(5-2y,y), y belongs to all real numbers

Step-by-step explanation:

x=5-2y

3x=15-6y

3(5-2y)=15-6y

15-6y=15-6y

y∈All Real Numbers

(x,y)=(5-2y,y), y∈All Real Numbers

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Find the missing coordinate to complete the ordered-pair solution to the given linear equation: A) y+6x=5 <br>      (a) (-1,?)  
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A
a) y+6x=5 if x= -1  then y+6(-1)=5 then y = 11
b) same thing if x = 3 then y+6(3)=5 y+18=5  subtract both sides by -18 and leave y on left then add 5+(-18)= 13 then y=13

B same as above
question (a) asks you to solve for y because x is -2
(b) asks you to solve for x because y is known
3x+2y=-6 if y = 3 you write 3x+2(3)=-6 3x+6=-6 move the +6 over to right side by subtracting 6 from both side 3x=-6 + -6 so 3x=-12 to get rid of the 3 and only leave the x you want to divide both side by 3 then x= -12/3 then the answer would be x=-4

4 0
3 years ago
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If you toss a coin 4 times, what is the probability of landing heads, heads, tails, heads and then heads?
storchak [24]
50 percent chance for either one
7 0
3 years ago
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What is the Midpoint of CD given the coordinates C(-4,8) and D(8,-4)??
alina1380 [7]
Use this formula...
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3 0
3 years ago
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Amir says the graph of<br> y= x2 + 16 has -4 as a zero. Is Amir correct?<br> Explain.
sukhopar [10]

Answer:

  • Amir is wrong

Step-by-step explanation:

The function y = x² + 16 is positive for any value of x, hence the graph has no intersection with the x-axis and therefore has no real zero's.

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schepotkina [342]
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so the second other factor is x+4 so hope that choice wan being x+4 than this will be right just you missed the sign pf plus 

hope this will help you 
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3 years ago
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