Answer:
-3x-1y
Step-by-step explanation:
5x - 3y⇒ -2(4x-y)
⇒-2(4x - y) = -8x +2y
5x - 3y -8x + 2y
<u>Combine like terms:</u>
5x- 8x= -3x
-3y +2y = -1x
<u>-3x - 1y</u>
The dealer paid 'C' for it. He decided to sell it for 10% more than C .
That would be (1.10 C) , and that's the $856.90 .
So the equation is . . . 1.10 C = $856.90
Divide each side by 1.10 : C = $856.90 / 1.10
<em>C = $779</em>
Answer:
Sine, cosine and tangent
Step-by-step explanation:
Given a right triangle you can find the sine (or cosine, or tangent) of either of the non- 90° angles.
Answer:
k=-9.02
Step-by-step explanation:
I multiplied by 2.2 on both sides and got my answer.
Answer:
8
Step-by-step explanation:
First, find x.
4x - 10 = -30
Add 10 to both sides
4x = -20
Divide by 4
x = -5
Now subtract.
3 -(-5)
8
Please let me know if I'm wrong!