Write as an ordered pair. 4x+2y=16 and -4y+x=4
2 answers:
Answer:
(4,0)
Step-by-step explanation:
4x + 2y = 16
2x + y = 8
y = 8 - 2x
-4y + x = 4
-4(8 - 2x) + x = 4
-32 + 8x + x = 4
9x = 36
x = 4
y = 8 - 2(4) = 0
Answer:
(4,0)
Step-by-step explanation:
4x+2y=16
-4y+x=4
Multiply the first equation by 2
2(4x+2y)=16*2
8x +4y = 32
Add the 2nd equation
8x +4y = 32
x -4y =4
--------------------
9x =36
Divide each side by 9
9x/9 = 36/9
x=4
Now solve for y
-4y +x =4
-4y +4 = 4
Subtract 4 from each side
-4y +4-4=4-4
-4y =0
Divide by -4
-4y/-4 =0/-4
y=0
(4,0)
You might be interested in
A contradiction is:always true never false hope this helps
Answer:
go to khan academy and u can find a vid. answer there!
Step-by-step explanation:
Answer:
16 children
Step-by-step explanation:
80% of 20 children comes out to 16 children who are of age 5.
If desired, rewrite "80%" as "0.80" and use that 0.80 as the multiplier of 20:
0.80(20 children) = 16 children.
Answer:
B, 2,010
Hope this helps have a nice day/night :)
Answer:
y=27x
Step-by-step explanation:
first you have to do 3x9 to get the answer witch is 27 so then it wants an eqation so the eqation would be y=27x
