X+ y = 2....multiply by -2
2x + 5y = 16
--------------
-2x - 2y = -4 (result of multiplying by 2-)
2x + 5y = 16
-------------add
3y = 12
y = 12/3
y = 4
x + y = 2
x + 4 = 2
x = 2 - 4
x = -2
solution is (-2,4)
Answer:
approximately 54.7% did not respond.
Step-by-step explanation:
Consider the provided information.
The college chooses 150 businesses at random from telephone listings.
Of these, 68 return the questionnaire.
That means 68 of them responded.
The number of people who did not respond are:
150-68=82
The number of people who did not respond are 82.
Now find the percentage of people who did not respond.
![\frac{82}{150}\times 100 \approx 54.7\%](https://tex.z-dn.net/?f=%5Cfrac%7B82%7D%7B150%7D%5Ctimes%20100%20%5Capprox%2054.7%5C%25)
Hence, approximately 54.7% did not respond.
your whole number is 12, your remainder is .64 for a total of 12.64
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)