Use the substitution method to solve the system of equations. Choose the
2 answers:
Answer:
C. (3,21)
Step-by-step explanation:
multiply the 2nd equation by -10 to cancel out the x.
y = 10x - 9
-10(y = x + 18)
y = 10x - 9
-10y = -10x - 180
-9y = -189
y = 21
Now plug y = 21 into either original equation.
y = x + 18
21 = x + 18
Take 18 from each side.
3 = x
Answer: (3, 21)
Answer: C. (3,21) - x= 3 ; y= 21
Step-by-step explanation:
y= 10x - 9
.(-1)
y = x + 18
-y= -10x + 9
<u> y = x + 18</u>
-9x + 27
x= <u>27</u>
-9
x= 3
y = x + 18
y= 3 + 18
y= 21
You might be interested in
Answer:
y=1/4x+2.5
Step-by-step explanation:
Find rise/run
rise/run=1/4
Look for the point
(2,3)
Plug into y-y2=m(x-x2)
y-3=1/4(x-2)
Solve
y-3=1/4x-0.5
y=1/4x+2.5
C, because 12 squared plus 16 squared equals 544, then you take the square root of
<h2>
Answer:</h2>
<h3>a. ans) - 27</h3>
<h3>b.ans) 2</h3>
<h3>c.ans) - 17</h3>
<h3>d.ans) - 7</h3>
<h3>e.ans) - 25</h3>
<h2>Hope it help you </h2>
Answer:
![\\\sqrt[1]{8}](https://tex.z-dn.net/?f=%5C%5C%5Csqrt%5B1%5D%7B8%7D)
![\sqrt[1]{8}](https://tex.z-dn.net/?f=%5Csqrt%5B1%5D%7B8%7D)
Step-by-step explanation:
A would have to equal -3.2
